diff --git a/public/locales/en/common.json b/public/locales/en/common.json
index 58ba4c80..30e5eb6b 100644
--- a/public/locales/en/common.json
+++ b/public/locales/en/common.json
@@ -432,7 +432,8 @@
     "MAX_LENGTH_DIGITS_ERROR": "Maximum {{maxLength}} Digits allowed",
     "MIN_LENGTH_CHARACTERS_ERROR": "Minimum {{minLength}} characters required",
     "MAX_LENGTH_CHARACTERS_ERROR": "Maximum {{maxLength}} characters allowed",
-    "NUMBER_AND_SPECIAL_CHARACTERS_NOT_ALLOWED": "Numbers and special characters are not allowed"
+    "NUMBER_AND_SPECIAL_CHARACTERS_NOT_ALLOWED": "Numbers and special characters are not allowed",
+    "ENTER_VALID_MOBILE_NUMBER": "Enter Valid mobile number"
   },
   "COURSE_PLANNER": {
     "COURSE_PLANNER": "Course Plan",
diff --git a/src/components/AddLeanerModal.tsx b/src/components/AddLeanerModal.tsx
index f660d649..00b43fdb 100644
--- a/src/components/AddLeanerModal.tsx
+++ b/src/components/AddLeanerModal.tsx
@@ -95,7 +95,8 @@ const AddLearnerModal: React.FC<AddLearnerModalProps> = ({
     let cohortId, teacherData;
     if (typeof window !== 'undefined' && window.localStorage) {
       teacherData = JSON.parse(localStorage.getItem('teacherApp') || '');
-      localStorage.getItem('cohortId') ?? localStorage.getItem('classId');
+      cohortId =
+        localStorage.getItem('cohortId') ?? localStorage.getItem('classId');
     }
     const { username, password } = generateUsernameAndPassword(
       teacherData?.state?.stateCode,
@@ -161,7 +162,7 @@ const AddLearnerModal: React.FC<AddLearnerModalProps> = ({
     }
 
     try {
-      if (isEditModal && userId) {
+      if (isEditModal && userId && cohortId) {
         console.log('apiBody', apiBody);
         const userData = {
           name: apiBody.name,
diff --git a/src/components/DynamicForm.tsx b/src/components/DynamicForm.tsx
index c0472488..5398d3eb 100644
--- a/src/components/DynamicForm.tsx
+++ b/src/components/DynamicForm.tsx
@@ -84,7 +84,7 @@ const DynamicForm: React.FC<DynamicFormProps> = ({
           const property = error.property.substring(1);
 
           switch (pattern) {
-            case '^[^ ][a-zA-Z ]*[^ ]$': {
+            case '^[a-zA-Z][a-zA-Z ]*[a-zA-Z]$': {
               error.message = t(
                 'FORM_ERROR_MESSAGES.NUMBER_AND_SPECIAL_CHARACTERS_NOT_ALLOWED'
               );
diff --git a/src/pages/centers/[cohortId].tsx b/src/pages/centers/[cohortId].tsx
index f2e3e340..0f1625e3 100644
--- a/src/pages/centers/[cohortId].tsx
+++ b/src/pages/centers/[cohortId].tsx
@@ -116,8 +116,9 @@ const TeachingCenterDetails = () => {
     setOpenSchedule(false);
     setDeleteModal(false);
   };
-  const setRemoveCohortId = reassignLearnerStore((state) => state.setRemoveCohortId);
-  
+  const setRemoveCohortId = reassignLearnerStore(
+    (state) => state.setRemoveCohortId
+  );
 
   useEffect(() => {
     const getCohortData = async () => {
@@ -128,8 +129,8 @@ const TeachingCenterDetails = () => {
 
       if (response?.cohortData?.length) {
         cohortData = response?.cohortData[0];
-        setRemoveCohortId(cohortData?.cohortId)
-        
+        setRemoveCohortId(cohortData?.cohortId);
+
         if (cohortData?.customField?.length) {
           const district = cohortData.customField.find(
             (item: CustomField) => item.label === 'District'
@@ -535,7 +536,7 @@ const TeachingCenterDetails = () => {
         {value === 3 && (
           <>
             <Box mt={3} px={'18px'}>
-              <Button
+              {/* <Button
                 sx={{
                   border: '1px solid #1E1B16',
                   borderRadius: '100px',
@@ -547,14 +548,14 @@ const TeachingCenterDetails = () => {
                 endIcon={<AddIcon />}
               >
                 {t('COMMON.ADD_NEW')}
-              </Button>
+              </Button> */}
             </Box>
             <Box
               px={'18px'}
               mt={2}
               sx={{ display: 'flex', gap: '4px', alignItems: 'center' }}
             >
-              <Box
+              {/* <Box
                 sx={{ color: theme.palette.secondary.main }}
                 className="fs-14 fw-500"
                 onClick={() => {
@@ -562,10 +563,10 @@ const TeachingCenterDetails = () => {
                 }}
               >
                 {t('COMMON.REVIEW_ATTENDANCE')}
-              </Box>
-              <ArrowForwardIcon
+              </Box> */}
+              {/* <ArrowForwardIcon
                 sx={{ fontSize: '18px', color: theme.palette.secondary.main }}
-              />
+              /> */}
             </Box>
             <Box>
               <CohortFacilitatorList