diff --git a/src/controllers/tanksController.js b/src/controllers/tanksController.js
index 11436892..83d4ce20 100644
--- a/src/controllers/tanksController.js
+++ b/src/controllers/tanksController.js
@@ -7519,3 +7519,51 @@ exports.adjustMeasurement = async (req, reply) => {
       reply.status(500).send({ message: err.message });
   }
 };
+
+
+exports.validateTankHeight = async (req, reply) => {
+  try {
+      const { tankhardwareId, hardwareId } = req.body;
+
+      if (!tankhardwareId || !hardwareId) {
+          return reply.status(400).send({ message: "Both tankhardwareId and hardwareId are required." });
+      }
+
+      // Find tank details from tanksSchema
+      const tank = await Tank.findOne({ tankhardwareId, hardwareId });
+
+      if (!tank) {
+          return reply.status(404).send({ message: "Tank not found with the given tankhardwareId and hardwareId." });
+      }
+
+      // Find corresponding IoT data from IOttankSchema
+      const iotTank = await IotData.findOne({ hardwareId, "tanks.tankhardwareId": tankhardwareId });
+
+      if (!iotTank) {
+          return reply.status(404).send({ message: "IoT tank data not found for the given hardwareId and tankhardwareId." });
+      }
+
+      // Convert tank height from feet to cm
+      const heightInCm = parseFloat(tank.height) * 30.48;
+      const iotTankHeight = parseFloat(iotTank.tanks.find(t => t.tankhardwareId === tankhardwareId).tankHeight);
+
+      console.log("Converted Tank Height (cm):", heightInCm);
+      console.log("IoT Tank Height (cm):", iotTankHeight);
+
+      // Check for extreme values
+      if (heightInCm < iotTankHeight) {
+          return reply.status(400).send({ 
+              message: "Extreme high values detected! Tank height exceeds IoT data." 
+          });
+      }
+
+      reply.send({ 
+          status_code: 200, 
+          message: "Tank height is within the valid range." 
+      });
+
+  } catch (err) {
+      reply.status(500).send({ message: err.message });
+  }
+};
+
diff --git a/src/routes/tanksRoute.js b/src/routes/tanksRoute.js
index 9bd6e3bf..0855cb76 100644
--- a/src/routes/tanksRoute.js
+++ b/src/routes/tanksRoute.js
@@ -565,6 +565,28 @@ module.exports = function (fastify, opts, next) {
           handler: tanksController.IotDevice
         });
         
+        fastify.route({
+          method: "POST",
+          url: "/api/validateRange",
+          schema: {
+            tags: ["Tank"],
+            description: "Validate tank height range",
+            summary: "Validate tank height range",
+            body: {
+              type: "object",
+              properties: {
+                tankhardwareId: { type: "string" },
+                hardwareId: { type: "string" }
+
+               
+              },
+              required: ["tankhardwareId"]
+            },
+          
+          },
+          handler: tanksController.validateTankHeight
+        });
+        
         fastify.route({
           method: "POST",
           url: "/api/adjustMeasurement",