diff --git a/app/src/main/java/com/woka/networking/ApiResult.kt b/app/src/main/java/com/woka/networking/ApiResult.kt
index 0b92cc6..2158a71 100644
--- a/app/src/main/java/com/woka/networking/ApiResult.kt
+++ b/app/src/main/java/com/woka/networking/ApiResult.kt
@@ -3,7 +3,7 @@ package com.woka.networking
 sealed class ApiResult<T>(data: T? = null, errorMessage: String? = null) {
 
     class Loading<T>: ApiResult<T>()
-    class Success<T>(data: T? = null): ApiResult<T>(data)
-    class Error<T>(errorMessage: String? = null): ApiResult<T>(errorMessage = errorMessage)
+    class Success<T>(val data: T? = null): ApiResult<T>(data)
+    class Error<T>(val errorMessage: String? = null): ApiResult<T>(errorMessage = errorMessage)
 
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/woka/networking/RetrofitHelper.kt b/app/src/main/java/com/woka/networking/RetrofitHelper.kt
index 5318cc7..7018f6a 100644
--- a/app/src/main/java/com/woka/networking/RetrofitHelper.kt
+++ b/app/src/main/java/com/woka/networking/RetrofitHelper.kt
@@ -5,12 +5,17 @@ import android.content.Context
 import android.provider.Settings
 import com.woka.BuildConfig
 import com.woka.WokaApp.Companion.userPrefs
+import com.woka.onboard.models.LoginResponse
+import com.woka.utils.NO_INTERNET_MESSAGE
+import com.woka.utils.UNKNOWN_ERROR_MESSAGE
 import okhttp3.Credentials
 import okhttp3.Interceptor
 import okhttp3.OkHttpClient
 import okhttp3.logging.HttpLoggingInterceptor
+import retrofit2.Response
 import retrofit2.Retrofit
 import retrofit2.converter.gson.GsonConverterFactory
+import java.net.UnknownHostException
 
 object RetrofitHelper {
 
@@ -50,4 +55,30 @@ object RetrofitHelper {
     fun getRetrofit(): Retrofit{
         return retrofit ?: createRetrofit()
     }
+
+    // api caller
+    suspend fun <T>handleApiCall(apiCall: suspend () -> Response<ApiResponse<T>>): ApiResult<T> {
+        return try {
+            val response = apiCall() // this api call can throw some exception
+            handleApiResponse(response) // handling the response
+        } catch (e: UnknownHostException) {
+            ApiResult.Error(errorMessage = NO_INTERNET_MESSAGE)
+        } catch (e: Exception) {
+            ApiResult.Error(errorMessage = UNKNOWN_ERROR_MESSAGE)
+        }
+    }
+
+    // api response handler
+    fun <T>handleApiResponse(response: Response<ApiResponse<T>>): ApiResult<T> {
+        if (response.isSuccessful) {
+            val body = response.body() ?: return ApiResult.Error(errorMessage = "Empty Response")
+            return if (body.success == 1) {
+                ApiResult.Success(body.data)
+            } else {
+                ApiResult.Error(errorMessage = body.message)
+            }
+        } else {
+            return ApiResult.Error(errorMessage = response.message())
+        }
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/woka/onboard/fragments/GetCodeFragment.kt b/app/src/main/java/com/woka/onboard/fragments/GetCodeFragment.kt
index f79f55a..b75f56b 100644
--- a/app/src/main/java/com/woka/onboard/fragments/GetCodeFragment.kt
+++ b/app/src/main/java/com/woka/onboard/fragments/GetCodeFragment.kt
@@ -1,16 +1,26 @@
 package com.woka.onboard.fragments
 
 import android.os.Bundle
+import android.os.CountDownTimer
+import android.util.Log
 import androidx.fragment.app.Fragment
 import android.view.LayoutInflater
 import android.view.View
+import android.view.View.GONE
+import android.view.View.VISIBLE
 import android.view.ViewGroup
+import android.widget.Toast
 import androidx.core.widget.addTextChangedListener
+import androidx.lifecycle.ViewModelProvider
 import androidx.navigation.fragment.findNavController
 import com.woka.R
 import com.woka.databinding.FragmentGetCodeBinding
+import com.woka.networking.ApiResult
 import com.woka.onboard.fragments.GetEmailFragment.Companion.IS_RESET_PASSWORD_INTENT
 import com.woka.onboard.fragments.GetEmailFragment.Companion.IS_UNDER_16
+import com.woka.onboard.mvvm.OnboardViewModel
+import com.woka.utils.PARENT_TYPE
+import com.woka.utils.ProgressView
 import com.woka.utils.closeKeyboard
 
 /*
@@ -22,16 +32,32 @@ import com.woka.utils.closeKeyboard
  */
 class GetCodeFragment : Fragment() {
 
+    companion object {
+        const val UNIQUE_STRING_ARG = "unique_str_arg"
+        const val EMAIL_ARG = "unique_str_arg"
+        const val OTP_RESEND_COUNT_DOWN_TIME = 10 * 60 * 1000L // 10 min
+    }
+
     private lateinit var binding: FragmentGetCodeBinding
 
+    // args
     private var isUnder16: Boolean = false
     private var isResetPasswordIntent: Boolean = false
+    private var uniqueString: String = ""
+    private var email: String = ""
+
+    private lateinit var viewModel: OnboardViewModel
+    private lateinit var progressView: ProgressView
+
+    private lateinit var countDownTimer: CountDownTimer
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         arguments?.let {
             isUnder16 = it.getBoolean(IS_UNDER_16, false)
             isResetPasswordIntent = it.getBoolean(IS_RESET_PASSWORD_INTENT, false)
+            uniqueString = it.getString(UNIQUE_STRING_ARG, "")
+            email = it.getString(EMAIL_ARG, "")
         }
     }
 
@@ -40,6 +66,10 @@ class GetCodeFragment : Fragment() {
         savedInstanceState: Bundle?
     ): View? {
         binding = FragmentGetCodeBinding.inflate(inflater, container, false)
+        activity?.let {
+            viewModel = ViewModelProvider(it)[OnboardViewModel::class.java]
+            progressView = ProgressView(it)
+        }
 
         initViews()
 
@@ -48,44 +78,105 @@ class GetCodeFragment : Fragment() {
         return binding.root
     }
 
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        // count down timer
+        startCountDown()
+
+        // observing live data
+        viewModel.sendOTPLiveData.observe(viewLifecycleOwner){
+            when(it){
+                is ApiResult.Error -> {
+                    progressView.hide()
+                    Toast.makeText(activity, "${it.errorMessage}", Toast.LENGTH_SHORT).show()
+                }
+                is ApiResult.Loading -> {
+                    progressView.show("Sending OTP...")
+                }
+                is ApiResult.Success -> {
+                    startCountDown()
+                    Toast.makeText(activity, "OTP sent successfully", Toast.LENGTH_SHORT).show()
+                    progressView.hide()
+                    uniqueString = it.data?.unique_string?:""
+                }
+                null -> {}
+            }
+        }
+
+        viewModel.validateOTPLiveData.observe(viewLifecycleOwner) {
+            when (it) {
+                is ApiResult.Error -> {
+                    progressView.hide()
+                    Toast.makeText(activity, "${it.errorMessage}", Toast.LENGTH_SHORT).show()
+                }
+                is ApiResult.Loading -> {
+                    progressView.show("Validating OTP...")
+                }
+                is ApiResult.Success -> {
+                    Toast.makeText(activity, "OTP validation successful.", Toast.LENGTH_SHORT).show()
+                    progressView.hide()
+                    val args = Bundle().apply {
+                        putBoolean(IS_UNDER_16, isUnder16)
+                        putString(EMAIL_ARG, email)
+                    }
+
+                    findNavController().navigate(
+                        R.id.action_getCodeFragment_to_signUpFragment,
+                        args
+                    )
+                }
+
+                null -> {}
+            }
+        }
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        viewModel.clearValidateOTP()
+        viewModel.clearSendOTPData()
+
+        countDownTimer.cancel()
+    }
+
     private fun initViews() {
         binding.apply {
-            if (isResetPasswordIntent){
+            if (isResetPasswordIntent) {
                 title.text = getString(R.string.please_get_otp_under_16)
                 infoText.text = getString(R.string.request_them_for_the_code_to_reset_your_password)
-            }
-            else if (isUnder16){
+            } else if (isUnder16) {
                 title.text = getString(R.string.please_get_otp_under_16)
                 infoText.text = getString(R.string.request_them_for_verification_)
             }
 
             et1.addTextChangedListener {
-                if (it?.isEmpty() == false){
+                if (it?.isEmpty() == false) {
                     et2.requestFocus()
                 }
             }
 
             et2.addTextChangedListener {
-                if (it?.isEmpty() == false){
+                if (it?.isEmpty() == false) {
                     et3.requestFocus()
-                }else{
+                } else {
                     et1.requestFocus()
                 }
             }
 
             et3.addTextChangedListener {
-                if (it?.isEmpty() == false){
+                if (it?.isEmpty() == false) {
                     et4.requestFocus()
-                }else{
+                } else {
                     et2.requestFocus()
                 }
             }
 
             et4.addTextChangedListener {
-                if (it?.isEmpty() == false){
+                if (it?.isEmpty() == false) {
                     // close keyboard
                     activity?.closeKeyboard()
-                }else{
+                } else {
                     et3.requestFocus()
                 }
             }
@@ -99,16 +190,43 @@ class GetCodeFragment : Fragment() {
             }
 
             next.setOnClickListener {
-                if (isResetPasswordIntent){
+                if (isResetPasswordIntent) {
                     findNavController().navigate(R.id.action_getCodeFragment_to_newPasswordFragment2)
-                }else{
-                    val args = Bundle().apply {
-                        putBoolean(IS_UNDER_16, isUnder16)
-                    }
+                } else {
+                    viewModel.validateOTP(uniqueString, getOTP())
+                }
+            }
 
-                    findNavController().navigate(R.id.action_getCodeFragment_to_signUpFragment, args)
+            resend.setOnClickListener {
+                if (!isUnder16){
+                    viewModel.sendOTP(email, PARENT_TYPE)
                 }
             }
         }
     }
+
+    private fun startCountDown(){
+        binding.countdown.visibility = VISIBLE
+        binding.resend.visibility = GONE
+
+        countDownTimer = object :CountDownTimer(OTP_RESEND_COUNT_DOWN_TIME, 1000){
+            override fun onTick(millisUntilFinished: Long) {
+                val rms = (millisUntilFinished)/1000 // remaining time in second
+                val time = "%02d:%02d".format(rms/60, rms%60)
+                val text = "OTP is valid for $time Min"
+                binding.countdown.text = text
+            }
+
+            override fun onFinish() {
+                binding.countdown.visibility = GONE
+                binding.resend.visibility = VISIBLE
+            }
+        }.start()
+    }
+
+    private fun getOTP(): String {
+        binding.apply {
+            return "${et1.text}${et2.text}${et3.text}${et4.text}"
+        }
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/woka/onboard/fragments/GetEmailFragment.kt b/app/src/main/java/com/woka/onboard/fragments/GetEmailFragment.kt
index bb3b229..daa4c93 100644
--- a/app/src/main/java/com/woka/onboard/fragments/GetEmailFragment.kt
+++ b/app/src/main/java/com/woka/onboard/fragments/GetEmailFragment.kt
@@ -8,9 +8,16 @@ import android.view.View
 import android.view.View.VISIBLE
 import android.view.ViewGroup
 import android.widget.Toast
+import androidx.lifecycle.ViewModelProvider
 import androidx.navigation.fragment.findNavController
 import com.woka.R
 import com.woka.databinding.FragmentGetEmailBinding
+import com.woka.networking.ApiResult
+import com.woka.onboard.fragments.GetCodeFragment.Companion.EMAIL_ARG
+import com.woka.onboard.fragments.GetCodeFragment.Companion.UNIQUE_STRING_ARG
+import com.woka.onboard.mvvm.OnboardViewModel
+import com.woka.utils.PARENT_TYPE
+import com.woka.utils.ProgressView
 
 /*
     This fragment is to get the email user input
@@ -21,13 +28,16 @@ import com.woka.databinding.FragmentGetEmailBinding
  */
 class GetEmailFragment : Fragment() {
 
-    companion object{
+    companion object {
         const val IS_UNDER_16 = "is_under_16"
         const val IS_RESET_PASSWORD_INTENT = "reset_password_intent"
     }
 
     private lateinit var binding: FragmentGetEmailBinding
 
+    private lateinit var viewModel: OnboardViewModel
+    private lateinit var progressView: ProgressView
+
     private var isUnder16: Boolean = false
     private var isResetPasswordIntent: Boolean = false
 
@@ -45,6 +55,11 @@ class GetEmailFragment : Fragment() {
     ): View? {
         binding = FragmentGetEmailBinding.inflate(inflater, container, false)
 
+        activity?.let {
+            viewModel = ViewModelProvider(it)[OnboardViewModel::class.java]
+            progressView = ProgressView(it)
+        }
+
         initViews()
 
         clickEvents()
@@ -52,17 +67,87 @@ class GetEmailFragment : Fragment() {
         return binding.root
     }
 
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        // observing to live data for this fragment
+        viewModel.checkEmailExistData.observe(viewLifecycleOwner) {
+            when (it) {
+                is ApiResult.Error -> {
+                    progressView.hide()
+                    Toast.makeText(activity, "${it.errorMessage}", Toast.LENGTH_SHORT).show()
+                }
+
+                is ApiResult.Loading -> {
+                    progressView.show(title = "Please wait...")
+                }
+
+                is ApiResult.Success -> {
+                    if (!isUnder16) {
+                        viewModel.sendOTP(binding.email.text.toString(), PARENT_TYPE)
+                    }
+                }
+
+                null -> {}
+            }
+        }
+
+        viewModel.sendOTPLiveData.observe(viewLifecycleOwner) {
+            when (it) {
+                is ApiResult.Error -> {
+                    progressView.hide()
+                    Toast.makeText(activity, "${it.errorMessage}", Toast.LENGTH_SHORT).show()
+                }
+
+                is ApiResult.Loading -> {
+                    progressView.show(title = "Sending OTP")
+                }
+
+                is ApiResult.Success -> {
+                    viewModel.clearSendOTPData()
+                    progressView.hide()
+
+                    val args = if (isResetPasswordIntent) {
+                        Bundle().apply {
+                            putBoolean(IS_RESET_PASSWORD_INTENT, isResetPasswordIntent)
+                        }
+                    } else {
+                        Bundle().apply {
+                            putBoolean(IS_UNDER_16, isUnder16)
+                            putString(UNIQUE_STRING_ARG, it.data?.unique_string)
+                            putString(EMAIL_ARG, binding.email.text.toString())
+                        }
+                    }
+
+                    findNavController().navigate(
+                        R.id.action_getEmailFragment_to_getCodeFragment,
+                        args
+                    )
+                }
+
+                null -> {}
+            }
+        }
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        // removing values from live data for a fresh data when new instance is created
+        viewModel.clearCheckEmailExist()
+        viewModel.clearSendOTPData()
+    }
+
     private fun initViews() {
         binding.apply {
-            if (isResetPasswordIntent){
+            if (isResetPasswordIntent) {
                 // scenario 3
 
                 title.text = getString(R.string.forgot_your_password)
                 can.text = getString(R.string.please_give_us_your_username)
                 email.hint = getString(R.string.enter_your_username)
-                verificationTxt.text = getString(R.string.we_will_send_a_reset_code_to_your_parent_s_email)
+                verificationTxt.text =
+                    getString(R.string.we_will_send_a_reset_code_to_your_parent_s_email)
                 verificationTxt.visibility = VISIBLE
-            }else if (isUnder16){
+            } else if (isUnder16) {
                 // scenario 2
 
                 title.text = getString(R.string.let_s_be_safe)
@@ -77,22 +162,17 @@ class GetEmailFragment : Fragment() {
 
         binding.next.setOnClickListener {
             binding.email.error = null
-            if (!Patterns.EMAIL_ADDRESS.matcher(binding.email.text.toString()).matches()){
+            if (!Patterns.EMAIL_ADDRESS.matcher(binding.email.text.toString()).matches()) {
                 binding.email.error = "Invalid email"
                 return@setOnClickListener
             }
 
-            val args = if (isResetPasswordIntent){
-                Bundle().apply {
-                    putBoolean(IS_RESET_PASSWORD_INTENT, isResetPasswordIntent)
-                }
-            }else{
-                Bundle().apply {
-                    putBoolean(IS_UNDER_16, isUnder16)
-                }
+            if (!isUnder16) {
+                // parent
+                viewModel.checkEmailExist(binding.email.text.toString(), PARENT_TYPE)
+            } else {
+//                viewModel.checkEmailExist(binding.email.text.toString(), PARENT_TYPE)
             }
-
-            findNavController().navigate(R.id.action_getEmailFragment_to_getCodeFragment, args)
         }
 
         binding.backBtn.setOnClickListener {
diff --git a/app/src/main/java/com/woka/onboard/fragments/SignInFragment.kt b/app/src/main/java/com/woka/onboard/fragments/SignInFragment.kt
index a556a36..cd6259f 100644
--- a/app/src/main/java/com/woka/onboard/fragments/SignInFragment.kt
+++ b/app/src/main/java/com/woka/onboard/fragments/SignInFragment.kt
@@ -7,30 +7,74 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.view.WindowManager
+import android.widget.Toast
+import androidx.lifecycle.ViewModelProvider
 import androidx.navigation.fragment.findNavController
 import com.woka.R
 import com.woka.databinding.FragmentSignInBinding
+import com.woka.networking.ApiResult
 import com.woka.onboard.fragments.GetEmailFragment.Companion.IS_RESET_PASSWORD_INTENT
+import com.woka.onboard.mvvm.OnboardViewModel
+import com.woka.utils.ProgressView
 
 class SignInFragment : Fragment() {
 
     private lateinit var binding: FragmentSignInBinding
 
-    private var isUnder16 = false
+    private lateinit var viewModel: OnboardViewModel
+
+    private lateinit var progressView: ProgressView
 
     override fun onCreateView(
         inflater: LayoutInflater, container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
         binding = FragmentSignInBinding.inflate(inflater, container, false)
-        activity?.window?.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS)
-        activity?.window?.statusBarColor = Color.parseColor("#6ed5fe")
+        activity?.let {
+            it.window?.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS)
+            it.window?.statusBarColor = Color.parseColor("#6ed5fe")
+
+            viewModel = ViewModelProvider(it)[OnboardViewModel::class.java]
+
+            progressView = ProgressView(it)
+        }
 
         clickEvents()
 
         return binding.root
     }
 
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        viewModel.loginLiveData.observe(viewLifecycleOwner){ it ->
+            when(it){
+                is ApiResult.Error -> {
+                    progressView.hide()
+                    Toast.makeText(activity, "${it.errorMessage}", Toast.LENGTH_SHORT).show()
+                }
+                is ApiResult.Loading -> {
+                    progressView.show()
+                }
+                is ApiResult.Success -> {
+                    progressView.hide()
+                    it.data?.result?.let {
+                        if (it.already_logged_in){
+                            Toast.makeText(activity, "Already logged in", Toast.LENGTH_SHORT).show()
+                        }else{
+                            Toast.makeText(activity, "Log in successful", Toast.LENGTH_SHORT).show()
+                        }
+                    }
+                }
+                null -> {}
+            }
+        }
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        viewModel.clearLoginLiveData()
+    }
+
     private fun clickEvents() {
         binding.apply {
             forgotPassword.setOnClickListener {
@@ -47,6 +91,22 @@ class SignInFragment : Fragment() {
             createAccount.setOnClickListener {
                 findNavController().navigate(R.id.action_signInFragment_to_age_select_fragment)
             }
+
+            login.setOnClickListener {
+                if (username.text.isEmpty()){
+                    username.error = "Username required"
+                    return@setOnClickListener
+                }
+
+                password.text?.let { password ->
+                    if (password.length < 6){
+                        Toast.makeText(activity, "Password must be at least 6 characters", Toast.LENGTH_SHORT).show()
+                        return@setOnClickListener
+                    }
+
+                    viewModel.login(username.text.toString(), password.toString())
+                }?:Toast.makeText(activity, "Something went wrong!", Toast.LENGTH_SHORT).show()
+            }
         }
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/woka/onboard/fragments/SignUpFragment.kt b/app/src/main/java/com/woka/onboard/fragments/SignUpFragment.kt
index 89765fd..af6c056 100644
--- a/app/src/main/java/com/woka/onboard/fragments/SignUpFragment.kt
+++ b/app/src/main/java/com/woka/onboard/fragments/SignUpFragment.kt
@@ -6,22 +6,35 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.View.VISIBLE
 import android.view.ViewGroup
+import android.widget.Toast
+import androidx.lifecycle.ViewModelProvider
 import androidx.navigation.fragment.findNavController
 import com.woka.R
 import com.woka.databinding.FragmentSignUpBinding
+import com.woka.networking.ApiResult
+import com.woka.onboard.fragments.GetCodeFragment.Companion.EMAIL_ARG
 import com.woka.onboard.fragments.GetEmailFragment.Companion.IS_UNDER_16
 import com.woka.onboard.fragments.GetMoreInfoFragment.Companion.USER_NAME_ARG
+import com.woka.onboard.mvvm.OnboardViewModel
+import com.woka.utils.CHILD_TYPE
+import com.woka.utils.PARENT_TYPE
+import com.woka.utils.ProgressView
 
 class SignUpFragment : Fragment() {
 
     private lateinit var binding: FragmentSignUpBinding
 
     private var isUnder16 = false
+    private var email: String? = null
+
+    private lateinit var viewModel: OnboardViewModel
+    private lateinit var progressView: ProgressView
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         arguments?.let {
             isUnder16 = it.getBoolean(IS_UNDER_16, false)
+            email = it.getString(EMAIL_ARG)
         }
     }
 
@@ -31,6 +44,11 @@ class SignUpFragment : Fragment() {
     ): View? {
         binding = FragmentSignUpBinding.inflate(inflater, container, false)
 
+        activity?.let {
+            viewModel = ViewModelProvider(it)[OnboardViewModel::class.java]
+            progressView = ProgressView(it)
+        }
+
         initViews()
 
         clickEvents()
@@ -38,9 +56,46 @@ class SignUpFragment : Fragment() {
         return binding.root
     }
 
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        // listening to live data
+        viewModel.checkUserNameExistLiveData.observe(viewLifecycleOwner) {
+            when (it) {
+                is ApiResult.Error -> {
+                    progressView.hide()
+                    Toast.makeText(activity, "${it.errorMessage}", Toast.LENGTH_SHORT).show()
+                }
+
+                is ApiResult.Loading -> {
+                    progressView.show("Validating details")
+                }
+
+                is ApiResult.Success -> {
+                    progressView.hide()
+                    val args = Bundle().apply {
+                        putBoolean(IS_UNDER_16, isUnder16)
+                        putString(USER_NAME_ARG, binding.name.text.trim().toString())
+                    }
+
+                    findNavController().navigate(
+                        R.id.action_signUpFragment_to_getMoreInfoFragment,
+                        args
+                    )
+                }
+
+                null -> {}
+            }
+        }
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        viewModel.clearCheckUserNameExist()
+    }
+
     private fun initViews() {
         binding.apply {
-            if (isUnder16){
+            if (isUnder16) {
                 doNotShare.visibility = VISIBLE
             }
         }
@@ -53,13 +108,41 @@ class SignUpFragment : Fragment() {
             }
 
             next.setOnClickListener {
-                val args = Bundle().apply {
-                    putBoolean(IS_UNDER_16, isUnder16)
-                    putString(USER_NAME_ARG, "Aditya")
+                if (allOkay()) {
+                    email?.let {
+                        val userType = if (isUnder16) CHILD_TYPE else PARENT_TYPE
+                        viewModel.checkUserNameExist(it, username.text.toString(), userType)
+                    } ?: Toast.makeText(activity, "Something went wrong!", Toast.LENGTH_SHORT)
+                        .show()
                 }
-
-                findNavController().navigate(R.id.action_signUpFragment_to_getMoreInfoFragment, args)
             }
         }
     }
+
+    private fun allOkay(): Boolean {
+        var allOkay = true
+
+        binding.apply {
+            if (username.text.length < 2) {
+                allOkay = false
+                username.error = "Must be at least 3 characters"
+            }
+
+            if (name.text.trim().isEmpty()) {
+                allOkay = false
+                name.error = "Required"
+            }
+
+            if (password.text != null && password.text!!.length < 6) {
+                allOkay = false
+                Toast.makeText(
+                    activity,
+                    "Password must be at least 6 characters",
+                    Toast.LENGTH_SHORT
+                ).show()
+            }
+        }
+
+        return allOkay
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/woka/onboard/models/Gender.kt b/app/src/main/java/com/woka/onboard/models/Gender.kt
new file mode 100644
index 0000000..4ff6541
--- /dev/null
+++ b/app/src/main/java/com/woka/onboard/models/Gender.kt
@@ -0,0 +1,6 @@
+package com.woka.onboard.models
+
+data class Gender(
+    val gender_name: String,
+    val id: Int
+)
\ No newline at end of file
diff --git a/app/src/main/java/com/woka/onboard/models/Language.kt b/app/src/main/java/com/woka/onboard/models/Language.kt
new file mode 100644
index 0000000..fb6f42c
--- /dev/null
+++ b/app/src/main/java/com/woka/onboard/models/Language.kt
@@ -0,0 +1,6 @@
+package com.woka.onboard.models
+
+data class Language(
+    val id: Int,
+    val language_name: String
+)
\ No newline at end of file
diff --git a/app/src/main/java/com/woka/onboard/models/LoginResponse.kt b/app/src/main/java/com/woka/onboard/models/LoginResponse.kt
index a15c35a..03ffc62 100644
--- a/app/src/main/java/com/woka/onboard/models/LoginResponse.kt
+++ b/app/src/main/java/com/woka/onboard/models/LoginResponse.kt
@@ -1,4 +1,4 @@
 package com.woka.onboard.models
 data class LoginResponse(
-    val result: Result
+    val result: Result?
 )
\ No newline at end of file
diff --git a/app/src/main/java/com/woka/onboard/models/Result.kt b/app/src/main/java/com/woka/onboard/models/Result.kt
index f900c1f..debf7c4 100644
--- a/app/src/main/java/com/woka/onboard/models/Result.kt
+++ b/app/src/main/java/com/woka/onboard/models/Result.kt
@@ -2,5 +2,18 @@ package com.woka.onboard.models
 
 data class Result(
     val already_logged_in: Boolean,
-    val is_deactive: Boolean
+    val avtar: String?,
+    val birthdate: String?,
+    val child_detail: Any?,
+    val email: String?,
+    val fullname: String?,
+    val gender: Gender?,
+    val id: Int?,
+    val is_active: String?,
+    val language: Language?,
+    val language_master_id: Int?,
+    val last_login: String?,
+    val remember_token: String?,
+    val user_type: String?,
+    val username: String?
 )
\ No newline at end of file
diff --git a/app/src/main/java/com/woka/onboard/models/VerifyEmail.kt b/app/src/main/java/com/woka/onboard/models/VerifyEmail.kt
new file mode 100644
index 0000000..ecc1015
--- /dev/null
+++ b/app/src/main/java/com/woka/onboard/models/VerifyEmail.kt
@@ -0,0 +1,5 @@
+package com.woka.onboard.models
+
+data class VerifyEmail(
+    val unique_string: String?
+)
\ No newline at end of file
diff --git a/app/src/main/java/com/woka/onboard/mvvm/OnboardApiService.kt b/app/src/main/java/com/woka/onboard/mvvm/OnboardApiService.kt
index b9d0200..839c93a 100644
--- a/app/src/main/java/com/woka/onboard/mvvm/OnboardApiService.kt
+++ b/app/src/main/java/com/woka/onboard/mvvm/OnboardApiService.kt
@@ -2,13 +2,30 @@ package com.woka.onboard.mvvm
 
 import com.woka.networking.ApiResponse
 import com.woka.onboard.models.LoginResponse
+import com.woka.onboard.models.VerifyEmail
 import okhttp3.FormBody
 import retrofit2.Response
 import retrofit2.http.Body
-import retrofit2.http.GET
+import retrofit2.http.POST
 
 interface OnboardApiService {
 
-    @GET("login")
+    @POST("login")
     suspend fun login(@Body body: FormBody): Response<ApiResponse<LoginResponse>>
+
+    @POST("login_proceed")
+    suspend fun loginProceed(@Body body: FormBody): Response<ApiResponse<LoginResponse>>
+
+    @POST("user_email_verification")
+    suspend fun verifyEmail(@Body body: FormBody): Response<ApiResponse<VerifyEmail>>
+
+    @POST("check_exist_email")
+    suspend fun checkEmailExist(@Body body: FormBody): Response<ApiResponse<Any>>
+
+    @POST("validate_otp")
+    suspend fun verifyOTP(@Body body: FormBody): Response<ApiResponse<Any>>
+
+    @POST("check_exist_username")
+    suspend fun checkUserNameExist(@Body body: FormBody): Response<ApiResponse<Any>>
+
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/woka/onboard/mvvm/OnboardRepository.kt b/app/src/main/java/com/woka/onboard/mvvm/OnboardRepository.kt
index 55c9b63..ffeaa2c 100644
--- a/app/src/main/java/com/woka/onboard/mvvm/OnboardRepository.kt
+++ b/app/src/main/java/com/woka/onboard/mvvm/OnboardRepository.kt
@@ -1,26 +1,83 @@
 package com.woka.onboard.mvvm
 
+import com.woka.networking.ApiResponse
 import com.woka.networking.ApiResult
+import com.woka.networking.RetrofitHelper.handleApiCall
+import com.woka.networking.RetrofitHelper.handleApiResponse
 import com.woka.onboard.models.LoginResponse
+import com.woka.onboard.models.VerifyEmail
+import com.woka.utils.NO_INTERNET_MESSAGE
+import com.woka.utils.UNKNOWN_ERROR_MESSAGE
 import okhttp3.FormBody
+import retrofit2.Response
+import java.net.UnknownHostException
 
 class OnboardRepository(private val apiService: OnboardApiService) {
 
     suspend fun login(userName: String, password: String): ApiResult<LoginResponse> {
-        return try {
-            val response = apiService.login(
+        return handleApiCall {
+            apiService.login(
                 FormBody.Builder()
                     .add("username", userName)
                     .add("password", password)
                     .build()
             )
+        }
+    }
 
-            if (response.body()?.success == 1)
-                ApiResult.Success(response.body()?.data)
-            else
-                ApiResult.Error(errorMessage = response.body()?.message)
-        } catch (e: Exception) {
-            ApiResult.Error(errorMessage = e.message)
+    suspend fun loginProceed(userName: String, password: String): ApiResult<LoginResponse> {
+        return handleApiCall {
+            apiService.loginProceed(
+                FormBody.Builder()
+                    .add("username", userName)
+                    .add("password", password)
+                    .build()
+            )
+        }
+    }
+
+    suspend fun checkEmailExit(userType: String, email: String): ApiResult<Any> {
+        return handleApiCall {
+            apiService.checkEmailExist(
+                FormBody.Builder()
+                    .add("email", email)
+                    .add("user_type", userType)
+                    .build()
+            )
+        }
+    }
+
+    suspend fun userEmailVerification(userType: String, email: String): ApiResult<VerifyEmail> {
+        return handleApiCall {
+            apiService.verifyEmail(
+                FormBody.Builder()
+                    .add("email", email)
+                    .add("user_type", userType)
+                    .build()
+            )
+        }
+    }
+
+    suspend fun validateOTP(uniqueString: String, otp: String): ApiResult<Any> {
+        return handleApiCall {
+            apiService.verifyOTP(
+                FormBody.Builder()
+                    .add("otp", otp)
+                    .add("unique_string", uniqueString)
+                    .build()
+            )
+        }
+    }
+
+    suspend fun checkUserNameExist(email: String, userName: String, userType: String): ApiResult<Any>{
+        return handleApiCall {
+            apiService.checkUserNameExist(
+                FormBody.Builder()
+                    .add("email", email)
+                    .add("username", userName)
+                    .add("user_type", userType)
+                    .build()
+            )
         }
     }
 
diff --git a/app/src/main/java/com/woka/onboard/mvvm/OnboardViewModel.kt b/app/src/main/java/com/woka/onboard/mvvm/OnboardViewModel.kt
index 877e274..9d8e6a4 100644
--- a/app/src/main/java/com/woka/onboard/mvvm/OnboardViewModel.kt
+++ b/app/src/main/java/com/woka/onboard/mvvm/OnboardViewModel.kt
@@ -7,6 +7,7 @@ import androidx.lifecycle.viewModelScope
 import com.woka.networking.ApiResult
 import com.woka.networking.RetrofitHelper
 import com.woka.onboard.models.LoginResponse
+import com.woka.onboard.models.VerifyEmail
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 
@@ -14,15 +15,95 @@ class OnboardViewModel: ViewModel(){
 
     private val repository: OnboardRepository = OnboardRepository(RetrofitHelper.getRetrofit().create(OnboardApiService::class.java))
 
-    private val _signInLiveData = MutableLiveData<ApiResult<LoginResponse>>()
-    val signInLiveData: LiveData<ApiResult<LoginResponse>>
-        get() = _signInLiveData
+    // live_data
+    /*
+        Login Fragment
+     */
+    private val _loginLiveData = MutableLiveData<ApiResult<LoginResponse>?>()
+    fun clearLoginLiveData() = _loginLiveData.postValue(null)
+    val loginLiveData: LiveData<ApiResult<LoginResponse>?>
+        get() = _loginLiveData
+
+    private val _loginProceedLiveData = MutableLiveData<ApiResult<LoginResponse>?>()
+    fun clearLoginProceedLiveData() = _loginProceedLiveData.postValue(null)
+    val loginProceedData: LiveData<ApiResult<LoginResponse>?>
+        get() = _loginProceedLiveData
+
+    /*
+        Send email Fragment
+     */
+    private val _checkEmailExistLiveData = MutableLiveData<ApiResult<Any>?>()
+    fun clearCheckEmailExist() = _checkEmailExistLiveData.postValue(null)
+    val checkEmailExistData: LiveData<ApiResult<Any>?>
+        get() = _checkEmailExistLiveData
+
+    private val _sendOTPLiveData = MutableLiveData<ApiResult<VerifyEmail>?>()
+    fun clearSendOTPData() = _sendOTPLiveData.postValue(null)
+    val sendOTPLiveData: LiveData<ApiResult<VerifyEmail>?>
+        get() = _sendOTPLiveData
+
+    /*
+        VerifyOTP Fragment
+     */
+    private val _validateOTPLiveData = MutableLiveData<ApiResult<Any>?>()
+    fun clearValidateOTP() = _validateOTPLiveData.postValue(null)
+    val validateOTPLiveData: LiveData<ApiResult<Any>?>
+        get() = _validateOTPLiveData
+
+    /*
+        SignUp Fragment
+     */
+    private val _checkUserNameExistLiveData = MutableLiveData<ApiResult<Any>?>()
+    fun clearCheckUserNameExist() = _checkUserNameExistLiveData.postValue(null)
+    val checkUserNameExistLiveData: LiveData<ApiResult<Any>?>
+        get() = _checkUserNameExistLiveData
+
 
     fun login(userName: String, password: String){
         viewModelScope.launch {
-            _signInLiveData.postValue(ApiResult.Loading())
-            delay(6000)
-            _signInLiveData.postValue(ApiResult.Success())
+            _loginLiveData.postValue(ApiResult.Loading())
+            val response = repository.login(userName, password)
+            _loginLiveData.postValue(response)
+        }
+    }
+
+    fun loginProceed(userName: String, password: String){
+        viewModelScope.launch {
+            _loginProceedLiveData.postValue(ApiResult.Loading())
+            val response = repository.loginProceed(userName, password)
+            _loginProceedLiveData.postValue(response)
+        }
+    }
+
+    fun checkEmailExist(email: String, userType: String){
+        viewModelScope.launch {
+            _checkEmailExistLiveData.postValue(ApiResult.Loading())
+            val response = repository.checkEmailExit(userType, email)
+            _checkEmailExistLiveData.postValue(response)
+        }
+    }
+
+    fun sendOTP(email: String, userType: String){
+        viewModelScope.launch {
+            _sendOTPLiveData.postValue(ApiResult.Loading())
+            val response = repository.userEmailVerification(userType, email)
+            _sendOTPLiveData.postValue(response)
+        }
+    }
+
+    fun validateOTP(uniqueString: String, otp: String){
+        viewModelScope.launch {
+            _validateOTPLiveData.postValue(ApiResult.Loading())
+            val response = repository.validateOTP(uniqueString, otp)
+            _validateOTPLiveData.postValue(response)
+        }
+    }
+
+    fun checkUserNameExist(email: String, userName: String, userType: String){
+        viewModelScope.launch {
+            _checkUserNameExistLiveData.postValue(ApiResult.Loading())
+            val response = repository.checkUserNameExist(email, userName, userType)
+            _checkUserNameExistLiveData.postValue(response)
         }
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/woka/utils/Constants.kt b/app/src/main/java/com/woka/utils/Constants.kt
new file mode 100644
index 0000000..3f98762
--- /dev/null
+++ b/app/src/main/java/com/woka/utils/Constants.kt
@@ -0,0 +1,7 @@
+package com.woka.utils
+
+const val PARENT_TYPE = "2"
+const val CHILD_TYPE = "1"
+
+const val NO_INTERNET_MESSAGE = "Make sure you are connected to internet"
+const val UNKNOWN_ERROR_MESSAGE = "An unknown error occurred"
\ No newline at end of file
diff --git a/app/src/main/java/com/woka/utils/ProgressView.kt b/app/src/main/java/com/woka/utils/ProgressView.kt
index 9929bc5..9454215 100644
--- a/app/src/main/java/com/woka/utils/ProgressView.kt
+++ b/app/src/main/java/com/woka/utils/ProgressView.kt
@@ -4,9 +4,11 @@ import android.app.Dialog
 import android.content.Context
 import android.content.ContextWrapper
 import android.view.LayoutInflater
+import android.view.View.GONE
+import android.view.View.VISIBLE
 import com.woka.databinding.LayoutProgressViewBinding
 
-class ProgressView(context: Context, title: String): ContextWrapper(context) {
+class ProgressView(context: Context, title: String? = null): ContextWrapper(context) {
 
     private val dialog: Dialog = Dialog(this)
     private var binding: LayoutProgressViewBinding = LayoutProgressViewBinding.inflate(LayoutInflater.from(this))
@@ -19,10 +21,20 @@ class ProgressView(context: Context, title: String): ContextWrapper(context) {
         dialog.window?.setBackgroundDrawableResource(android.R.color.transparent)
 
         // init views
-        binding.title.text = title
+        binding.title.visibility = title?.let {
+            binding.title.text = it
+            VISIBLE
+        }?: GONE
     }
 
-    fun show() = dialog.show()
+    fun show(title: String? = null) {
+        binding.title.visibility = title?.let {
+            binding.title.text = it
+            VISIBLE
+        }?: GONE
+
+        dialog.show()
+    }
 
     fun hide() = dialog.dismiss()
     
diff --git a/app/src/main/res/layout/fragment_get_code.xml b/app/src/main/res/layout/fragment_get_code.xml
index 62b067e..a1f1559 100644
--- a/app/src/main/res/layout/fragment_get_code.xml
+++ b/app/src/main/res/layout/fragment_get_code.xml
@@ -78,6 +78,7 @@
         />
 
     <LinearLayout
+        android:id="@+id/opt_ll"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:orientation="horizontal"
@@ -211,6 +212,49 @@
 
     </LinearLayout>
 
+    <TextView
+        android:id="@+id/countdown"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:visibility="visible"
+
+        tools:text="OTP is valid for 10:00 Min"
+        android:textColor="@color/color_primary"
+        android:fontFamily="@font/exo_2_medium"
+        android:textSize="@dimen/_14ssp"
+        android:textAlignment="center"
+
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/opt_ll"
+        app:layout_constraintBottom_toTopOf="@id/next"
+
+        app:layout_constraintVertical_bias="0.1"
+
+        />
+
+    <TextView
+        android:id="@+id/resend"
+        android:visibility="gone"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:padding="2dp"
+
+        android:text="@string/resend_otp"
+        android:textColor="@color/color_primary"
+        android:fontFamily="@font/exo_2_medium"
+        android:textSize="@dimen/_14ssp"
+        android:textAlignment="center"
+
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/opt_ll"
+        app:layout_constraintBottom_toTopOf="@id/next"
+
+        app:layout_constraintVertical_bias="0.1"
+
+        />
+
     <TextView
         android:id="@+id/info_text"
         android:layout_width="match_parent"
diff --git a/app/src/main/res/layout/fragment_sign_in.xml b/app/src/main/res/layout/fragment_sign_in.xml
index e1f0f62..90badd0 100644
--- a/app/src/main/res/layout/fragment_sign_in.xml
+++ b/app/src/main/res/layout/fragment_sign_in.xml
@@ -98,6 +98,9 @@
             android:textColorHint="@android:color/darker_gray"
             android:textSize="@dimen/_13sdp"
 
+            android:digits="@string/alphanumeric"
+            android:maxLength="16"
+
             />
 
         <TextView
@@ -152,6 +155,8 @@
                     android:inputType="textPassword"
                     android:textSize="@dimen/_13sdp"
 
+                    android:maxLength="16"
+
                     />
 
             </com.google.android.material.textfield.TextInputLayout>
diff --git a/app/src/main/res/layout/fragment_sign_up.xml b/app/src/main/res/layout/fragment_sign_up.xml
index e865585..9c8969e 100644
--- a/app/src/main/res/layout/fragment_sign_up.xml
+++ b/app/src/main/res/layout/fragment_sign_up.xml
@@ -111,6 +111,8 @@
                 android:paddingHorizontal="20dp"
                 android:paddingVertical="15dp"
 
+                android:maxLength="16"
+
                 />
 
             <TextView
@@ -153,6 +155,8 @@
                 android:paddingHorizontal="20dp"
                 android:paddingVertical="15dp"
 
+                android:maxLength="50"
+
                 />
 
             <TextView
@@ -209,6 +213,8 @@
                         android:paddingHorizontal="20dp"
                         android:paddingVertical="15dp"
 
+                        android:maxLength="16"
+
                         />
 
                 </com.google.android.material.textfield.TextInputLayout>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 08a459a..3da095a 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -69,4 +69,6 @@
     <string name="back_btn" translatable="false">back_btn</string>
     <string name="enter_your_password">Enter your password</string>
     <string name="please_wait">Please wait...</string>
+    <string name="alphanumeric" translatable="false">ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890</string>
+    <string name="resend_otp">Resend OTP?</string>
 </resources>
\ No newline at end of file