diff --git a/app/Views/addemppaydate.php b/app/Views/addemppaydate.php
index dd826e54..7f8a8046 100755
--- a/app/Views/addemppaydate.php
+++ b/app/Views/addemppaydate.php
@@ -73,8 +73,8 @@
                                                 <div class="form-group">
                                                     <div class="form-group">
                                                         <label for="Basic_Pay">No Of Due(s)</label>
-                                                        <input type="text" value="0" class="form-control requried num"
-                                                            id="no_of_due" name="no_of_due" value="" pattern="[0-9]{1,2}"
+                                                        <input type="text" value="0.00" class="form-control requried num"
+                                                            id="no_of_due" name="no_of_due" pattern="^[1-9][0-9]?$"
                                                             title="Minimum 1 digit,Maximum 2 Digit" onchange="duecalculation();">
                                                     </div>
                                                 </div>
@@ -246,33 +246,35 @@
     });
 
 
-    function duecalculation() {
-        var totaldue = 0;
-        var loan = document.getElementById('Loan_Amount').value;
-        var no_of_due = document.getElementById('no_of_due').value;  
-        $('#remaining_due').val(no_of_due);
-
-        if (loan != 0) {
-            if (no_of_due == 0) {
-                alert("Enter No Of Due");
-                $('#no_of_due').focus();
-            } else {
-
-            
-                totalDueAmt = loan / no_of_due;
-
-                document.getElementById('monthly_due').value = Math.ceil(totalDueAmt);
-                  
-  
+        function duecalculation() {
+            var loan = parseFloat(document.getElementById('Loan_Amount').value);
+            var no_of_due_raw = document.getElementById('no_of_due').value.trim();
 
+            // Validate: not empty and matches 1–99 (no 0s or more than 2 digits)
+            if (no_of_due_raw !== '') {
+                if (!/^(?:[1-9]|[1-9][0-9])$/.test(no_of_due_raw)) {
+                    alert("Please enter a valid Number of Dues (Minimum 1 digit,Maximum 2 Digit).");
+                    document.getElementById('no_of_due').focus();
+                    document.getElementById('no_of_due').value = '';
+                    $('#monthly_due').val('');
+                    $('#remaining_due').val('');
+                    return;
+                }
             }
+
+            var no_of_due = parseInt(no_of_due_raw, 10);
+            $('#remaining_due').val(no_of_due);
+
+            if (!isNaN(loan) && loan > 0) {
+                var totalDueAmt = loan / no_of_due;
+                document.getElementById('monthly_due').value = Math.ceil(totalDueAmt);
+            } else {
+                $('#monthly_due').val('');
+            }
+
+            dateCalulation(); // Update your dates
         }
-       
 
-        dateCalulation();
-
-
-    }
 
     function dateCalulation() {
         //alert('j');
diff --git a/app/Views/editOldemppay.php b/app/Views/editOldemppay.php
index 8ae558df..9ebd921c 100755
--- a/app/Views/editOldemppay.php
+++ b/app/Views/editOldemppay.php
@@ -195,7 +195,7 @@ if (!empty($emppay)) {
                                                             <div class="form-group">
                                                                 <div class="form-group">
                                                                     <label for="Basic_Pay">No Of Due(s)</label>
-                                                                    <input type="text" class="form-control requried num" id="no_of_due" name="no_of_due" value="<?php echo $No_of_dues; ?>" pattern="[0-9]{1,2}" title="Minimum 1 digit,Maximum 2 Digit" onchange="duecalculation();">
+                                                                    <input type="text" class="form-control requried num" id="no_of_due" name="no_of_due" value="<?php echo $No_of_dues; ?>" pattern="^[1-9][0-9]?$" title="Minimum 1 digit,Maximum 2 Digit" onchange="duecalculation();">
                                                                 </div>
                                                             </div>
                                                         </div>
@@ -440,7 +440,21 @@ if (!empty($emppay)) {
     function duecalculation() {
         var totaldue = 0;
         var loan = document.getElementById('Loan_Amount').value;
-        var no_of_due = document.getElementById('no_of_due').value;
+        var no_of_due_raw = document.getElementById('no_of_due').value.trim();
+
+        if (no_of_due_raw !== '') {
+            if (!/^(?:[1-9]|[1-9][0-9])$/.test(no_of_due_raw)) {
+                alert("Please enter a valid Number of Dues (Minimum 1 digit,Maximum 2 Digit).");
+                document.getElementById('no_of_due').focus();
+                document.getElementById('no_of_due').value = '';
+                $('#monthly_due').val('');
+                $('#remaining_due').val('');
+                $('#balance_due_amount').val('');
+                return;
+            }
+        }
+
+        var no_of_due = parseInt(no_of_due_raw, 10);
 
         if (loan != 0) {
             if (no_of_due == 0) {