diff --git a/app/Views/gasStockDetails.php b/app/Views/gasStockDetails.php
index 9c69ce4e..50bfdab8 100644
--- a/app/Views/gasStockDetails.php
+++ b/app/Views/gasStockDetails.php
@@ -299,53 +299,53 @@
                                         <?php if($index==0){echo"contenteditable='true'";}?>
                                         oninput="openingStockChange(this)"
                                         data-id="<?=$gasStockDetail['date']?>"
-                                                                ><?=$gasStockDetail['opening']??'0'?></td>
+                                                                ><?=$gasStockDetail['opening'] ?? ' '?></td>
                                         <td class="celda_normal purchaseBharath"
                                           oninput="purchaseBharathStockChange(this)"
                                           data-id="<?=$gasStockDetail['date']?>"
-                                          contenteditable="true"><?=$gasStockDetail['purchaseBharath']??'0'?></td>
+                                          contenteditable="true"><?=$gasStockDetail['purchaseBharath'] ?? ' '?></td>
 
                                         <td class="celda_normal purchaseIndian"
                                           oninput="purchaseIndianStockChange(this)"
                                           data-id="<?=$gasStockDetail['date']?>"
-                                          contenteditable="true"><?=$gasStockDetail['purchaseIndian']??'0'?></td>
+                                          contenteditable="true"><?=$gasStockDetail['purchaseIndian'] ?? ' '?></td>
 
                                         <td class="celda_normal total"
                                           data-id="<?=$gasStockDetail['date']?>"
-                                                                ><?=$gasStockDetail['total']??'0'?></td>
+                                                                ><?=$gasStockDetail['total'] ?? ' '?></td>
                                         <td class="celda_normal consumption"
                                         data-id="<?=$gasStockDetail['date']?>"
-                                                                ><?=$gasStockDetail['consumption']??'0'?></td>
+                                                                ><?=$gasStockDetail['consumption'] ?? ' '?></td>
                                         <td class="celda_normal balanceStock"
                                           data-id="<?=$gasStockDetail['date']?>"
-                                                                ><?=$gasStockDetail['balanceStock']??'0'?></td>
+                                                                ><?=$gasStockDetail['balanceStock'] ?? ' '?></td>
                                         <td class="celda_normal tenTonGasConsumption"
                                         data-id="<?=$gasStockDetail['date']?>"
-                                                                ><?=$gasStockDetail['drierMachineGasConsumption']??'0'?></td>
+                                                                ><?=$gasStockDetail['drierMachineGasConsumption'] ?? ' '?></td>
                                         <td class="celda_normal">
-                                                                 <?=$gasStockDetail['sandDried']??'0'?></td>
+                                                                 <?=$gasStockDetail['sandDried'] ?? ' '?></td>
                                         <td class="celda_normal coatingGasConsumption"
                                         data-id="<?=$gasStockDetail['date']?>" >
-                                                                 <?=$gasStockDetail['coatingMachineGasconsumption']??'0'?></td>
+                                                                 <?=$gasStockDetail['coatingMachineGasconsumption'] ?? ' '?></td>
                                         <td class="celda_normal">
-                                                                <?=$gasStockDetail['coatedSand']??'0'?></td>
+                                                                <?=$gasStockDetail['coatedSand'] ?? ' '?></td>
 
                                         <td class="celda_normal trpGasConsumption"
                                          data-id="<?=$gasStockDetail['date']?>"
                                          oninput = "gasConsumptionChange(this)"
                                          contenteditable="true" >
-                                                                <?=$gasStockDetail['trpMachineGasconsumption']??'0'?></td>
+                                                                <?=$gasStockDetail['trpMachineGasconsumption'] ?? ' '?></td>
 
                                         <td class="celda_normal"
                                          contenteditable="true" >
-                                                                <?=$gasStockDetail['sandTrp']??'0'?>
+                                                                <?=$gasStockDetail['sandTrp'] ?? ' '?>
                                         </td>
 
                                         <td class="celda_normal rotaryGasConsumption"
                                          data-id="<?=$gasStockDetail['date']?>"
                                          oninput = "gasConsumptionChange(this)"
                                          contenteditable="true" >
-                                                                <?=$gasStockDetail['rotaryDrierMachineGasconsumption']??'0'?>
+                                                                <?=$gasStockDetail['rotaryDrierMachineGasconsumption'] ?? ' '?>
                                         </td>
 
                                     </tr>
@@ -392,48 +392,48 @@
                                         <?php if($datesInMonthIndex==0){echo"contenteditable='true'";}?>
                                         oninput="openingStockChange(this)"
                                         data-id="<?=$dateInMonth?>"
-                                                                ><?= $previousMonthGasStockDetails[0]['balanceStock'] ??'0' ?></td>
+                                                                ><?= $previousMonthGasStockDetails[0]['balanceStock'] ?? ' ' ?></td>
                                         <td class="celda_normal purchaseBharath"
                                           oninput="purchaseBharathStockChange(this)"
                                           data-id="<?=$dateInMonth?>"
-                                          contenteditable="true">0</td>
+                                          contenteditable="true"> </td>
 
                                         <td class="celda_normal purchaseIndian"
                                           oninput="purchaseIndianStockChange(this)"
                                          data-id="<?=$dateInMonth?>"
-                                          contenteditable="true">0</td>
+                                          contenteditable="true"> </td>
 
                                         <td class="celda_normal total"
                                          data-id="<?=$dateInMonth?>"
-                                                                >0</td>
+                                                                > </td>
                                         <td class="celda_normal consumption"
                                          data-id="<?=$dateInMonth?>"
-                                                                >0</td>
+                                                                > </td>
                                         <td class="celda_normal balanceStock"
                                          data-id="<?=$dateInMonth?>"
                                                                 ><?= $previousMonthGasStockDetails[0]['balanceStock'] ??'0' ?></td>
 
                                         <td class="celda_normal tenTonGasConsumption"
                                         data-id="<?=$dateInMonth?>"
-                                                                >0</td>
-                                        <td class="celda_normal">0</td>
+                                                                > </td>
+                                        <td class="celda_normal"> </td>
                                         <td class="celda_normal coatingGasConsumption"
                                         data-id="<?=$dateInMonth?>"
-                                                                >0</td>
-                                        <td class="celda_normal">0</td>
+                                                                > </td>
+                                        <td class="celda_normal"> </td>
                                         <td class="celda_normal trpGasConsumption"
                                           data-id="<?=$dateInMonth?>"
                                           contenteditable="true"
                                           oninput = "gasConsumptionChange(this)"
-                                                                >0</td>
+                                                                > </td>
                                         <td class="celda_normal"
                                           contenteditable="true"
-                                                                >0</td> 
+                                                                > </td> 
                                         <td class="celda_normal rotaryGasConsumption"
                                          data-id="<?=$dateInMonth?>"
                                          contenteditable="true"
                                          oninput = "gasConsumptionChange(this)"
-                                                                >0</td>
+                                                                > </td>
                                     </tr>
                                          <?php }
                                          }?>
@@ -615,12 +615,12 @@
                         
                 const rowData = {
                     date,
-                    opening: rowCells.eq(1).text().trim()|| '0',
-                    purchaseBharath: rowCells.eq(2).text().trim()|| '0',
-                    purchaseIndian: rowCells.eq(3).text().trim()|| '0',
-                    total: rowCells.eq(4).text().trim()|| '0',
-                    consumption: rowCells.eq(5).text().trim()|| '0',
-                    balanceStock: rowCells.eq(6).text().trim()|| '0'
+                    opening: rowCells.eq(1).text().trim()|| ' ',
+                    purchaseBharath: rowCells.eq(2).text().trim()|| ' ',
+                    purchaseIndian: rowCells.eq(3).text().trim()|| ' ',
+                    total: rowCells.eq(4).text().trim()|| ' ',
+                    consumption: rowCells.eq(5).text().trim()|| ' ',
+                    balanceStock: rowCells.eq(6).text().trim()|| ' '
                 };
 
                 rows.push(rowData);
@@ -640,14 +640,14 @@
         try{ 
             let dataId = tdElement.getAttribute('data-id');
             let date = dataId;
-            let openingStock = tdElement.innerText;
-            let purchaseBharathStock = document.querySelector(`td.purchaseBharath[data-id="${dataId}"]`).innerText;
-            let purchaseIndianStock  = document.querySelector(`td.purchaseIndian[data-id="${dataId}"]`).innerText;
-            let toatalGasConsumption = document.querySelector(`td.consumption[data-id="${dataId}"]`).innerText;
+            let openingStock         = validateInput(tdElement.innerText);
+            let purchaseBharathStock = validateInput(document.querySelector(`td.purchaseBharath[data-id="${dataId}"]`).innerText);
+            let purchaseIndianStock  = validateInput(document.querySelector(`td.purchaseIndian[data-id="${dataId}"]`).innerText);
+            let toatalGasConsumption = validateInput(document.querySelector(`td.consumption[data-id="${dataId}"]`).innerText);
             let totalGas             = (Number(openingStock) + Number(purchaseBharathStock)) + Number(purchaseIndianStock);
             let currentBalanceStock  =  Number(totalGas) - Number(toatalGasConsumption);
 
-            document.querySelector(`td.total[data-id="${dataId}"]`).innerText=totalGas;
+            document.querySelector(`td.total[data-id="${dataId}"]`).innerText = totalGas;
             document.querySelector(`td.balanceStock[data-id="${dataId}"]`).innerText= currentBalanceStock;
 
             updateStockValue( date,currentBalanceStock )
@@ -664,15 +664,15 @@
         try{ 
             let dataId = tdElement.getAttribute('data-id');
             let date = dataId;
-            let openingStock = document.querySelector(`td.openingStock[data-id="${dataId}"]`).innerText;
-            let purchaseBharathStock = tdElement.innerText;
-            let purchaseIndianStock  = document.querySelector(`td.purchaseIndian[data-id="${dataId}"]`).innerText;
-            let toatalGasConsumption = document.querySelector(`td.consumption[data-id="${dataId}"]`).innerText;
+            let openingStock         = validateInput(document.querySelector(`td.openingStock[data-id="${dataId}"]`).innerText) ;
+            let purchaseBharathStock = validateInput(tdElement.innerText) ;
+            let purchaseIndianStock  = validateInput(document.querySelector(`td.purchaseIndian[data-id="${dataId}"]`).innerText) ;
+            let toatalGasConsumption = validateInput(document.querySelector(`td.consumption[data-id="${dataId}"]`).innerText) ;
             let totalGas             = (Number(openingStock) + Number(purchaseBharathStock)) + Number(purchaseIndianStock);
             let currentBalanceStock  =  Number(totalGas) - Number(toatalGasConsumption);
 
-            document.querySelector(`td.total[data-id="${dataId}"]`).innerText=totalGas;
-            document.querySelector(`td.balanceStock[data-id="${dataId}"]`).innerText= currentBalanceStock;
+            document.querySelector(`td.total[data-id="${dataId}"]`).innerText = totalGas;
+            document.querySelector(`td.balanceStock[data-id="${dataId}"]`).innerText = currentBalanceStock;
 
             updateStockValue( date,currentBalanceStock )
 
@@ -684,17 +684,15 @@
             }
         }
 
-
-
         function purchaseIndianStockChange(tdElement) {
 
             try{ 
             let dataId = tdElement.getAttribute('data-id');
             let date = dataId;
-            let openingStock = document.querySelector(`td.openingStock[data-id="${dataId}"]`).innerText;
-            let purchaseBharathStock = document.querySelector(`td.purchaseBharath[data-id="${dataId}"]`).innerText;
-            let purchaseIndianStock  = tdElement.innerText;
-            let toatalGasConsumption = document.querySelector(`td.consumption[data-id="${dataId}"]`).innerText;
+            let openingStock         = validateInput(document.querySelector(`td.openingStock[data-id="${dataId}"]`).innerText);
+            let purchaseBharathStock = validateInput(document.querySelector(`td.purchaseBharath[data-id="${dataId}"]`).innerText);
+            let purchaseIndianStock  = validateInput(tdElement.innerText);
+            let toatalGasConsumption = validateInput(document.querySelector(`td.consumption[data-id="${dataId}"]`).innerText);
             let totalGas             = (Number(openingStock) + Number(purchaseBharathStock)) + Number(purchaseIndianStock);
             let currentBalanceStock  =  Number(totalGas) - Number(toatalGasConsumption);
 
@@ -718,25 +716,25 @@
             let date = dataId;
 
             //total gas consumption
-            let tenTonGasConsumption = document.querySelector(`td.tenTonGasConsumption[data-id="${dataId}"]`).innerText;
-            let coatingGasConsumption = document.querySelector(`td.coatingGasConsumption[data-id="${dataId}"]`).innerText;
-            let trpGasConsumption  = document.querySelector(`td.trpGasConsumption[data-id="${dataId}"]`).innerText;
-            let rotaryGasConsumption = document.querySelector(`td.rotaryGasConsumption[data-id="${dataId}"]`).innerText;
+            let tenTonGasConsumption  = validateInput(document.querySelector(`td.tenTonGasConsumption[data-id="${dataId}"]`).innerText);
+            let coatingGasConsumption = validateInput(document.querySelector(`td.coatingGasConsumption[data-id="${dataId}"]`).innerText);
+            let trpGasConsumption     = validateInput(document.querySelector(`td.trpGasConsumption[data-id="${dataId}"]`).innerText);
+            let rotaryGasConsumption  = validateInput(document.querySelector(`td.rotaryGasConsumption[data-id="${dataId}"]`).innerText);
 
             let toatalGasConsumption = Number(tenTonGasConsumption) + Number (coatingGasConsumption) + Number(trpGasConsumption) + Number(rotaryGasConsumption) ;
            
 
             //total gas purchase and opening addition
-            let openingStock = document.querySelector(`td.openingStock[data-id="${dataId}"]`).innerText;
-            let purchaseBharathStock = document.querySelector(`td.purchaseBharath[data-id="${dataId}"]`).innerText;
-            let purchaseIndianStock  = document.querySelector(`td.purchaseIndian[data-id="${dataId}"]`).innerText;
+            let openingStock         = validateInput(document.querySelector(`td.openingStock[data-id="${dataId}"]`).innerText);
+            let purchaseBharathStock = validateInput(document.querySelector(`td.purchaseBharath[data-id="${dataId}"]`).innerText);
+            let purchaseIndianStock  = validateInput(document.querySelector(`td.purchaseIndian[data-id="${dataId}"]`).innerText);
             
             let totalGas             = (Number(openingStock) + Number(purchaseBharathStock)) + Number(purchaseIndianStock);
 
             let currentBalanceStock  =  Number(totalGas) - ( Number(toatalGasConsumption) );
 
             document.querySelector(`td.total[data-id="${dataId}"]`).innerText = totalGas;
-            document.querySelector(`td.consumption[data-id="${dataId}"]`).innerText =toatalGasConsumption ;
+            document.querySelector(`td.consumption[data-id="${dataId}"]`).innerText = toatalGasConsumption ;
             document.querySelector(`td.balanceStock[data-id="${dataId}"]`).innerText = currentBalanceStock;
 
             updateStockValue( date,currentBalanceStock  )
@@ -769,15 +767,15 @@
 
                 let dataId = `${otherDate}`;
 
-                document.querySelector(`td.openingStock[data-id="${dataId}"]`).innerText=currentBalanceStock;
+                document.querySelector(`td.openingStock[data-id="${dataId}"]`).innerText = currentBalanceStock;
 
                 let openingStock         = currentBalanceStock ;
 
-                let purchaseBharathStock = document.querySelector(`td.purchaseBharath[data-id="${dataId}"]`).innerText;
+                let purchaseBharathStock = validateInput(document.querySelector(`td.purchaseBharath[data-id="${dataId}"]`).innerText);
 
-                let purchaseIndianStock  = document.querySelector(`td.purchaseIndian[data-id="${dataId}"]`).innerText;
+                let purchaseIndianStock  = validateInput(document.querySelector(`td.purchaseIndian[data-id="${dataId}"]`).innerText);
 
-                let toatalGasConsumption = document.querySelector(`td.consumption[data-id="${dataId}"]`).innerText;
+                let toatalGasConsumption = validateInput(document.querySelector(`td.consumption[data-id="${dataId}"]`).innerText);
 
                 let totalGas             = (Number(openingStock) + Number(purchaseBharathStock)) + Number(purchaseIndianStock);
                
@@ -870,4 +868,28 @@ function convertToDate(dateString) {
         });
 
         }
+</script>
+
+
+<script>
+     function validateInput(input) {
+
+            if (input == '' || input == ' ' || input == '-') {
+                return 0;
+            }
+
+            if (typeof input === 'string' && input.split('').map(char => char.charCodeAt(0))[0] == 10) {
+                return 0;
+            }
+
+            // Validate against the regex
+            const isValid = /^-?\d*\.?\d*$/.test(input);
+            if (!isValid) {
+                alert('Invalid input! Please enter a valid number.');
+                return 0;
+            }
+
+            return input;
+         }
+
 </script>
\ No newline at end of file