diff --git a/host-ipmid/ipmid-api.h b/host-ipmid/ipmid-api.h
index 3bada47..e903deb 100644
--- a/host-ipmid/ipmid-api.h
+++ b/host-ipmid/ipmid-api.h
@@ -119,6 +119,7 @@
     IPMI_CC_PARM_OUT_OF_RANGE = 0xC9,
     IPMI_CC_SENSOR_INVALID = 0xCB,
     IPMI_CC_INVALID_FIELD_REQUEST = 0xCC,
+    IPMI_CC_ILLEGAL_COMMAND = 0xCD,
     IPMI_CC_RESPONSE_ERROR = 0xCE,
     IPMI_CC_INSUFFICIENT_PRIVILEGE = 0xD4,
     IPMI_CC_UNSPECIFIED_ERROR = 0xFF,
diff --git a/scripts/sensor-example.yaml b/scripts/sensor-example.yaml
index 06c8836..4a1472d 100755
--- a/scripts/sensor-example.yaml
+++ b/scripts/sensor-example.yaml
@@ -11,6 +11,9 @@
   serviceInterface: org.freedesktop.DBus.Properties
   # Where the sensor value is represented - assertion bits/reading/event data
   readingType: assertion
+  # indicate if a sensor is READ/WRITE/RW.
+  # This particular sensor read and write operation is allowed
+  mutability: Mutability::Write|Mutability::Read
   # Sensor name would be occ0
   sensorNamePattern: nameLeaf
   eventType: 0x6F
@@ -37,6 +40,7 @@
   path: /system/chassis/motherboard/dimm1
   serviceInterface: xyz.openbmc_project.Inventory.Manager
   readingType: assertion
+  mutability: Mutability::Write|Mutability::Read
   sensorNamePattern: nameLeaf
   interfaces:
     xyz.openbmc_project.State.Decorator.OperationalStatus:
@@ -76,6 +80,7 @@
   # Sensor name would be AttemptsLeft
   sensorNamePattern: nameProperty
   sensorReadingType: 0x6F
+  mutability: Mutability::Write|Mutability::Read
   sensorType: 0xC3
   serviceInterface: org.freedesktop.DBus.Properties
 
@@ -90,6 +95,7 @@
   readingType: readingAssertion
   sensorNamePattern: nameProperty
   sensorReadingType: 0x6F
+  mutability: Mutability::Write|Mutability::Read
   sensorType: 0xC3
   serviceInterface: org.freedesktop.DBus.Properties
 
@@ -122,6 +128,7 @@
   sensorReadingType: 0x6F
   serviceInterface: xyz.openbmc_project.Inventory.Manager
   readingType: assertion
+  mutability: Mutability::Write|Mutability::Read
   # Sensor name would be cpu0_core22
   sensorNamePattern: nameParentLeaf
   interfaces:
diff --git a/sensorhandler.cpp b/sensorhandler.cpp
index 3a47e20..1a66a1e 100644
--- a/sensorhandler.cpp
+++ b/sensorhandler.cpp
@@ -379,6 +379,13 @@
 
     try
     {
+        if (ipmi::sensor::Mutability::Write !=
+              (iter->second.mutability & ipmi::sensor::Mutability::Write))
+        {
+            log<level::ERR>("Sensor Set operation is not allowed",
+                            entry("SENSOR_NUM=%d", cmdData.number));
+            return IPMI_CC_ILLEGAL_COMMAND;
+        }
         return iter->second.updateFunc(cmdData, iter->second);
     }
     catch (InternalFailure& e)