diff --git a/radio/1.6/IRadio.hal b/radio/1.6/IRadio.hal
index d3790a8..8afbf22 100644
--- a/radio/1.6/IRadio.hal
+++ b/radio/1.6/IRadio.hal
@@ -324,4 +324,29 @@
      */
     oneway setAllowedNetworkTypeBitmap(
             uint32_t serial, bitfield<RadioAccessFamily> networkTypeBitmap);
+
+    /**
+     * Control data throttling at modem.
+     *   - DataThrottlingAction:NO_DATA_THROTTLING should clear any existing
+     *     data throttling within the requested completion window.
+     *   - DataThrottlingAction:THROTTLE_SECONDARY_CARRIER: Remove any existing
+     *     throttling on anchor carrier and achieve maximum data throttling on
+     *     secondary carrier within the requested completion window.
+     *   - DataThrottlingAction:THROTTLE_ANCHOR_CARRIER: disable secondary
+     *     carrier and achieve maximum data throttling on anchor carrier by
+     *     requested completion window.
+     *   - DataThrottlingAction:HOLD: Immediately hold on to current level of
+     *     throttling.
+     *
+     * @param serial Serial number of request.
+     * @param dataThrottlingAction DataThrottlingAction as defined in types.hal
+     * @param completionWindowSecs window, in seconds, in which the requested
+     *     throttling action has to be achieved. This must be 0 when
+     *     dataThrottlingAction is DataThrottlingAction:HOLD.
+     *
+     * Response function is IRadioResponse.setDataThrottlingResponse()
+     */
+    oneway setDataThrottling(int32_t serial,
+            DataThrottlingAction dataThrottlingAction,
+            int32_t completionWindowSecs);
 };
diff --git a/radio/1.6/IRadioResponse.hal b/radio/1.6/IRadioResponse.hal
index 05bb003..5a71c1f 100644
--- a/radio/1.6/IRadioResponse.hal
+++ b/radio/1.6/IRadioResponse.hal
@@ -306,4 +306,15 @@
      *   RadioError:NO_RESOURCES
      */
     oneway setAllowedNetworkTypeBitmapResponse(RadioResponseInfo info);
+
+    /**
+     * @param info Response info struct containing response type, serial no. and error
+     *
+     *  Valid errors returned:
+     *  RadioError:NONE
+     *  RadioError:RADIO_NOT_AVAILABLE
+     *  RadioError:MODEM_ERR
+     *  RadioError:INVALID_ARGUMENTS
+     */
+    oneway setDataThrottlingResponse(RadioResponseInfo info);
 };
diff --git a/radio/1.6/types.hal b/radio/1.6/types.hal
index da03190..556d8a3 100644
--- a/radio/1.6/types.hal
+++ b/radio/1.6/types.hal
@@ -395,3 +395,25 @@
     */
    uint32_t secondaryUplinkCapacityKbps;
 };
+
+enum DataThrottlingAction : int32_t {
+    /* Clear all existing data throttling. */
+    NO_DATA_THROTTLING = 0,
+
+    /**
+     * Enact secondary carrier data throttling and remove any existing data
+     * throttling on anchor carrier.
+     */
+    THROTTLE_SECONDARY_CARRIER = 1,
+
+    /**
+     * Enact anchor carrier data throttling and disable data on secondary
+     * carrier if currently enabled.
+     */
+    THROTTLE_ANCHOR_CARRIER = 2,
+
+    /**
+     * Immediately hold on to current level of throttling.
+     */
+    HOLD = 3
+};
diff --git a/radio/1.6/vts/functional/radio_hidl_hal_api.cpp b/radio/1.6/vts/functional/radio_hidl_hal_api.cpp
index 49df906..d3ffba9 100644
--- a/radio/1.6/vts/functional/radio_hidl_hal_api.cpp
+++ b/radio/1.6/vts/functional/radio_hidl_hal_api.cpp
@@ -295,3 +295,69 @@
                                   ::android::hardware::radio::V1_6::RadioError::INTERNAL_ERR,
                                   ::android::hardware::radio::V1_6::RadioError::NONE}));
 }
+
+/*
+ * Test IRadio.setDataThrottling() for the response returned.
+ */
+TEST_P(RadioHidlTest_v1_6, setDataThrottling) {
+    serial = GetRandomSerialNumber();
+
+    Return<void> res = radio_v1_6->setDataThrottling(
+            serial, DataThrottlingAction::THROTTLE_SECONDARY_CARRIER, 60);
+    ASSERT_OK(res);
+
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_6->rspInfo.type);
+    EXPECT_EQ(serial, radioRsp_v1_6->rspInfo.serial);
+    ASSERT_TRUE(
+            CheckAnyOfErrors(radioRsp_v1_6->rspInfo.error,
+                             {::android::hardware::radio::V1_6::RadioError::RADIO_NOT_AVAILABLE,
+                              ::android::hardware::radio::V1_6::RadioError::MODEM_ERR,
+                              ::android::hardware::radio::V1_6::RadioError::NONE,
+                              ::android::hardware::radio::V1_6::RadioError::INVALID_ARGUMENTS}));
+
+    serial = GetRandomSerialNumber();
+
+    res = radio_v1_6->setDataThrottling(serial, DataThrottlingAction::THROTTLE_ANCHOR_CARRIER, 60);
+    ASSERT_OK(res);
+
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_6->rspInfo.type);
+    EXPECT_EQ(serial, radioRsp_v1_6->rspInfo.serial);
+    ASSERT_TRUE(
+            CheckAnyOfErrors(radioRsp_v1_6->rspInfo.error,
+                             {::android::hardware::radio::V1_6::RadioError::RADIO_NOT_AVAILABLE,
+                              ::android::hardware::radio::V1_6::RadioError::MODEM_ERR,
+                              ::android::hardware::radio::V1_6::RadioError::NONE,
+                              ::android::hardware::radio::V1_6::RadioError::INVALID_ARGUMENTS}));
+
+    serial = GetRandomSerialNumber();
+
+    res = radio_v1_6->setDataThrottling(serial, DataThrottlingAction::HOLD, 60);
+    ASSERT_OK(res);
+
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_6->rspInfo.type);
+    EXPECT_EQ(serial, radioRsp_v1_6->rspInfo.serial);
+    ASSERT_TRUE(
+            CheckAnyOfErrors(radioRsp_v1_6->rspInfo.error,
+                             {::android::hardware::radio::V1_6::RadioError::RADIO_NOT_AVAILABLE,
+                              ::android::hardware::radio::V1_6::RadioError::MODEM_ERR,
+                              ::android::hardware::radio::V1_6::RadioError::NONE,
+                              ::android::hardware::radio::V1_6::RadioError::INVALID_ARGUMENTS}));
+
+    serial = GetRandomSerialNumber();
+
+    res = radio_v1_6->setDataThrottling(serial, DataThrottlingAction::NO_DATA_THROTTLING, 60);
+    ASSERT_OK(res);
+
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_6->rspInfo.type);
+    EXPECT_EQ(serial, radioRsp_v1_6->rspInfo.serial);
+    ASSERT_TRUE(
+            CheckAnyOfErrors(radioRsp_v1_6->rspInfo.error,
+                             {::android::hardware::radio::V1_6::RadioError::RADIO_NOT_AVAILABLE,
+                              ::android::hardware::radio::V1_6::RadioError::MODEM_ERR,
+                              ::android::hardware::radio::V1_6::RadioError::NONE,
+                              ::android::hardware::radio::V1_6::RadioError::INVALID_ARGUMENTS}));
+}
\ No newline at end of file
diff --git a/radio/1.6/vts/functional/radio_hidl_hal_utils_v1_6.h b/radio/1.6/vts/functional/radio_hidl_hal_utils_v1_6.h
index 28853ef..fcf679c 100644
--- a/radio/1.6/vts/functional/radio_hidl_hal_utils_v1_6.h
+++ b/radio/1.6/vts/functional/radio_hidl_hal_utils_v1_6.h
@@ -792,6 +792,9 @@
 
     Return<void> setAllowedNetworkTypeBitmapResponse(
             const ::android::hardware::radio::V1_6::RadioResponseInfo& info);
+
+    Return<void> setDataThrottlingResponse(
+            const ::android::hardware::radio::V1_6::RadioResponseInfo& info);
 };
 
 /* Callback class for radio indication */
diff --git a/radio/1.6/vts/functional/radio_response.cpp b/radio/1.6/vts/functional/radio_response.cpp
index cc2be4e..788038a 100644
--- a/radio/1.6/vts/functional/radio_response.cpp
+++ b/radio/1.6/vts/functional/radio_response.cpp
@@ -1156,3 +1156,10 @@
     parent_v1_6.notify(info.serial);
     return Void();
 }
+
+Return<void> RadioResponse_v1_6::setDataThrottlingResponse(
+        const ::android::hardware::radio::V1_6::RadioResponseInfo& info) {
+    rspInfo = info;
+    parent_v1_6.notify(info.serial);
+    return Void();
+}