diff --git a/lib/src/form/src/controller.dart b/lib/src/form/src/controller.dart
index 84a8fb2..5a1262a 100644
--- a/lib/src/form/src/controller.dart
+++ b/lib/src/form/src/controller.dart
@@ -287,33 +287,79 @@ class AstromicFormController extends FormController {
   }
 
   /// Initialize the formGroup Structure.
+  // void initializeFormGroup(FormGroupStructure groupStructure, {int initialCount = 1}) {
+  //   assert(groupStructure.fields.isNotEmpty, '${groupStructure.id}: Group fields should NOT be empty.');
+
+  //   // Validate subgroups (if any)
+  //   groupStructure.subGroups?.map(((FormGroupStructure, int) a) => a.$1).forEach(((FormGroupStructure subGroup) {
+  //     assert(subGroup.fields.isNotEmpty, '${subGroup.id}: Subgroup fields should NOT be empty.');
+  //   }));
+
+  //   // Add structure to registry
+  //   _formGroups.add(groupStructure);
+
+  //   for (int groupIndex = 0; groupIndex < initialCount; groupIndex++) {
+  //     // Add main group fields/values
+  //     _addGroupControllers(groupStructure, groupIndex);
+
+  //     // Add subgroup fields/values
+  //     if (groupStructure.subGroups != null && groupStructure.subGroups!.isNotEmpty) {
+  //       for (final (FormGroupStructure subGroup, int subgroupInitialCount) in groupStructure.subGroups!) {
+  //         for (int subIndex = 0; subIndex < subgroupInitialCount; subIndex++) {
+  //           final String nestedID = standeredGroupFormat(groupStructure.id, groupIndex, subGroup.id);
+  //           _addGroupControllers(subGroup, subIndex, parentPrefix: nestedID);
+  //         }
+  //       }
+  //     }
+  //   }
+  // }
+
   void initializeFormGroup(FormGroupStructure groupStructure, {int initialCount = 1}) {
     assert(groupStructure.fields.isNotEmpty, '${groupStructure.id}: Group fields should NOT be empty.');
 
     // Validate subgroups (if any)
-    groupStructure.subGroups?.map(((FormGroupStructure, int) a) => a.$1).forEach(((FormGroupStructure subGroup) {
-      assert(subGroup.fields.isNotEmpty, '${subGroup.id}: Subgroup fields should NOT be empty.');
-    }));
+    _validateSubGroups(groupStructure);
 
     // Add structure to registry
     _formGroups.add(groupStructure);
 
-    for (int groupIndex = 0; groupIndex < initialCount; groupIndex++) {
-      // Add main group fields/values
-      _addGroupControllers(groupStructure, groupIndex);
+    // Initialize the group instances
+    _initializeGroupControllers(groupStructure, initialCount);
+  }
 
-      // Add subgroup fields/values
+  /// Recursively initialize controllers for the group and its subgroups
+  void _initializeGroupControllers(FormGroupStructure groupStructure, int initialCount, {String parentPrefix = ''}) {
+    // Add main group fields/values
+    for (int groupIndex = 0; groupIndex < initialCount; groupIndex++) {
+      _addGroupControllers(groupStructure, groupIndex, parentPrefix: parentPrefix);
+
+      // Recursively handle subgroups
       if (groupStructure.subGroups != null && groupStructure.subGroups!.isNotEmpty) {
         for (final (FormGroupStructure subGroup, int subgroupInitialCount) in groupStructure.subGroups!) {
+          final String nestedPrefix = '$parentPrefix${standeredGroupFormat(groupStructure.id, groupIndex, subGroup.id)}';
+
+          // Initialize subgroup controllers recursively
           for (int subIndex = 0; subIndex < subgroupInitialCount; subIndex++) {
-            final String nestedID = standeredGroupFormat(groupStructure.id, groupIndex, subGroup.id);
-            _addGroupControllers(subGroup, subIndex, parentPrefix: nestedID);
+            _initializeGroupControllers(subGroup, subgroupInitialCount, parentPrefix: nestedPrefix);
           }
         }
       }
     }
   }
 
+  /// Validate subgroups recursively
+  void _validateSubGroups(FormGroupStructure groupStructure) {
+    groupStructure.subGroups?.forEach((subGroupTuple) {
+      final subGroup = subGroupTuple.$1;
+      assert(subGroup.fields.isNotEmpty, '${subGroup.id}: Subgroup fields should NOT be empty.');
+
+      // Recursively validate subgroups of subgroups
+      if (subGroup.subGroups != null) {
+        _validateSubGroups(subGroup);
+      }
+    });
+  }
+
   // void initializeFormGroup(FormGroupStructure groupStructure, {int initialCount = 1}) {
   //   assert(groupStructure.fields.isNotEmpty, '$groupStructure: Group Fields should NOT be empty.');
   //   if (groupStructure.subGroups != null && groupStructure.subGroups!.isNotEmpty) {