diff --git a/aptiche/lib/views/quiz/quiz_controller.dart b/aptiche/lib/views/quiz/quiz_controller.dart
index 02fc17e..769fec7 100644
--- a/aptiche/lib/views/quiz/quiz_controller.dart
+++ b/aptiche/lib/views/quiz/quiz_controller.dart
@@ -35,6 +35,8 @@ class QuizController extends GetxController {
   ///Stores the user score of the quiz
   Rx<int> userScore = 0.obs;
 
+  ///[questionIndex] stream subscription
+  StreamSubscription<int>? _questionIndexStream;
   // Functions
 
   /// A void function which controls the behaviour of the timer(`timeout`)
@@ -61,15 +63,28 @@ class QuizController extends GetxController {
     });
   }
 
+  @override
+  void onInit() {
+    _questionIndexStream = questionIndex.listen((_) {
+      update();
+    });
+    super.onInit();
+  }
+
   @override
   void dispose() {
+    _questionIndexStream?.cancel();
     timer.cancel();
     super.dispose();
   }
 
   /// Changes [radioGroupValue] to the selected option.
-  void selectOption(ChoicesEnum newValue) {
-    radioGroupValue.value = newValue;
+  void selectOption(ChoicesEnum? newValue) {
+    if (newValue == null) {
+      radioGroupValue.value = ChoicesEnum.NON;
+    } else
+      radioGroupValue.value = newValue;
+    update();
   }
 
   /// Checks whether the question is answered or not
diff --git a/aptiche/lib/views/quiz/quiz_view.dart b/aptiche/lib/views/quiz/quiz_view.dart
index 557d34a..4a32180 100644
--- a/aptiche/lib/views/quiz/quiz_view.dart
+++ b/aptiche/lib/views/quiz/quiz_view.dart
@@ -77,24 +77,24 @@ class QuizView extends GetView<QuizController> {
                 mainAxisAlignment: MainAxisAlignment.spaceBetween,
                 crossAxisAlignment: CrossAxisAlignment.center,
                 children: <Widget>[
-                  /*  if (controller.questionIndex.value > 0)
+                  if (controller.questionIndex.value > 0)
                     CustomButton(
                       horizontalPadding: SizeConfig.safeBlockHorizontal! * 1.4,
                       verticalPadding: SizeConfig.safeBlockVertical! * 0.27,
                       text: 'Previous',
                       onTap: () {
-                        print(controller.radioGroupValue.value);
-                        //controller.previous();
+                        // print(controller.radioGroupValue.value);
+                        controller.previous();
                       },
-                    ), */
-                  CustomButton(
-                    horizontalPadding: SizeConfig.safeBlockHorizontal! * 1.4,
-                    verticalPadding: SizeConfig.safeBlockVertical! * 0.27,
-                    text: 'Clear Choice',
-                    onTap: () {
-                      controller.clearRadioGroup();
-                    },
-                  ),
+                    ),
+                  // CustomButton(
+                  //   horizontalPadding: SizeConfig.safeBlockHorizontal! * 1.4,
+                  //   verticalPadding: SizeConfig.safeBlockVertical! * 0.27,
+                  //   text: 'Clear Choice',
+                  //   onTap: () {
+                  //     controller.clearRadioGroup();
+                  //   },
+                  // ),
                   if (controller.questionIndex.value + 1 <
                       controller.questions.length)
                     CustomButton(
diff --git a/aptiche/lib/widgets/quiz/choices_list_view.dart b/aptiche/lib/widgets/quiz/choices_list_view.dart
index 4d2647f..7d95af7 100644
--- a/aptiche/lib/widgets/quiz/choices_list_view.dart
+++ b/aptiche/lib/widgets/quiz/choices_list_view.dart
@@ -3,9 +3,10 @@ import 'package:aptiche/utils/ui_scaling.dart';
 import 'package:aptiche/views/quiz/quiz_controller.dart';
 import 'package:aptiche/widgets/quiz/custom_radio.dart';
 import 'package:flutter/material.dart';
+import 'package:get/get.dart';
 import 'package:get/get_state_manager/get_state_manager.dart';
 
-class ChoicesListView extends GetView<QuizController> {
+class ChoicesListView extends StatelessWidget {
   const ChoicesListView({
     Key? key,
   }) : super(key: key);
@@ -17,18 +18,21 @@ class ChoicesListView extends GetView<QuizController> {
         4,
         (int index) => Column(
           children: <Widget>[
-            Obx(
-              () => CustomRadio(
-                label: controller
-                    .questions[controller.questionIndex.value].options[index],
-                padding: EdgeInsets.zero,
-                groupValue: controller.radioGroupValue.value,
-                value: ChoicesEnum.values[index],
-                onChanged: (ChoicesEnum newValue) {
-                  controller.selectOption(newValue);
-                },
-              ),
-            ),
+            GetBuilder<QuizController>(
+                init: Get.find<QuizController>(),
+                builder: (QuizController controller) {
+                  return CustomRadio(
+                    label: controller.questions[controller.questionIndex.value]
+                        .options[index],
+                    padding: EdgeInsets.zero,
+                    groupValue: controller.radioGroupValue.value,
+                    value: ChoicesEnum.values[index],
+                    onChanged: (ChoicesEnum? newValue) {
+                      controller.selectOption(newValue);
+                    },
+                    toggleable: true,
+                  );
+                }),
             Padding(
               padding: EdgeInsets.symmetric(
                 horizontal: SizeConfig.safeBlockHorizontal! * 6,
diff --git a/aptiche/lib/widgets/quiz/custom_radio.dart b/aptiche/lib/widgets/quiz/custom_radio.dart
index 321768b..ccc2fde 100644
--- a/aptiche/lib/widgets/quiz/custom_radio.dart
+++ b/aptiche/lib/widgets/quiz/custom_radio.dart
@@ -9,8 +9,9 @@ class CustomRadio extends StatelessWidget {
     required this.groupValue,
     required this.value,
     required this.onChanged,
+    this.toggleable = false,
   }) : super(key: key);
-
+  final bool toggleable;
   final String label;
   final EdgeInsets padding;
   final ChoicesEnum groupValue;
@@ -23,7 +24,8 @@ class CustomRadio extends StatelessWidget {
       onTap: () {
         if (value != groupValue) {
           onChanged(value);
-        }
+        } else
+          onChanged(null);
       },
       child: Padding(
         padding: padding,
@@ -35,6 +37,7 @@ class CustomRadio extends StatelessWidget {
                       Theme.of(context).primaryColor),
               groupValue: groupValue,
               value: value,
+              toggleable: toggleable,
               onChanged: (ChoicesEnum? newValue) {
                 onChanged(newValue);
               },