diff --git a/radio/1.6/IRadio.hal b/radio/1.6/IRadio.hal
index 5f5f5c1..ca40a17 100644
--- a/radio/1.6/IRadio.hal
+++ b/radio/1.6/IRadio.hal
@@ -181,4 +181,28 @@
      *
      */
     oneway sendCdmaSmsExpectMore_1_6(int32_t serial, CdmaSmsMessage sms);
+
+    /**
+     * Enable or disable E-UTRA-NR dual connectivity. If disabled then UE will not connect
+     * to secondary carrier.
+     *
+     * @param serial Serial number of request.
+     * @param nrDualConnectivityState expected NR dual connectivity state.
+     * 1. Enable NR dual connectivity {NrDualConnectivityState:ENABLE}
+     * 2. Disable NR dual connectivity {NrDualConnectivityState:DISABLE}
+     * 3. Disable NR dual connectivity and force secondary cell to be released
+     * {NrDualConnectivityState:DISABLE_IMMEDIATE}
+
+     * Response callback is IRadioResponse.enableNRDualConnectivityResponse()
+     */
+    oneway enableNrDualConnectivity(int32_t serial,
+            NrDualConnectivityState nrDualConnectivityState);
+
+    /**
+     * Is E-UTRA-NR Dual Connectivity enabled
+     *
+     * @param serial Serial number of request.
+     * Response callback is IRadioResponse.isNRDualConnectivityEnabledResponse()
+     */
+    oneway isNrDualConnectivityEnabled(int32_t serial);
 };
diff --git a/radio/1.6/IRadioResponse.hal b/radio/1.6/IRadioResponse.hal
index fed7e79..4ff7e47 100644
--- a/radio/1.6/IRadioResponse.hal
+++ b/radio/1.6/IRadioResponse.hal
@@ -200,4 +200,26 @@
      *   RadioError:BLOCKED_DUE_TO_CALL
      */
     oneway sendCdmaSmsExpectMoreResponse_1_6(RadioResponseInfo info, SendSmsResult sms);
+
+    /**
+     * @param info Response info struct containing response type, serial no. and error
+     *
+     * Valid errors returned:
+     *   RadioError:NONE
+     *   RadioError:RADIO_NOT_AVAILABLE
+     *   RadioError:INTERNAL_ERR
+     */
+    oneway enableNrDualConnectivityResponse(RadioResponseInfo info);
+
+    /**
+     * @param info Response info struct containing response type, serial no. and error
+     *
+     * @param isEnabled Indicates whether NR dual connectivity is enabled or not, True if enabled
+     *        else false.
+     * Valid errors returned:
+     *   RadioError:NONE
+     *   RadioError:RADIO_NOT_AVAILABLE
+     *   RadioError:INTERNAL_ERR
+     */
+    oneway isNrDualConnectivityEnabledResponse(RadioResponseInfo info, bool isEnabled);
 };
diff --git a/radio/1.6/types.hal b/radio/1.6/types.hal
index c77a86d..07b4977 100644
--- a/radio/1.6/types.hal
+++ b/radio/1.6/types.hal
@@ -255,3 +255,24 @@
     /** Specifies the fallback mode on an IWLAN handover failure. */
     HandoverFailureMode handoverFailureMode;
 };
+
+/**
+ * NR Dual connectivity state
+ */
+enum NrDualConnectivityState: int32_t {
+    /**
+     * Enable NR dual connectivity. Enabled state does not mean dual connectivity
+     * is active. It means device is allowed to connect to both primary and secondary.
+     */
+    ENABLE = 1,
+    /**
+     * Disable NR dual connectivity. Disabled state does not mean secondary cell is released.
+     * Modem will release it only if current bearer is released to avoid radio link failure.
+     */
+    DISABLE = 2,
+    /**
+     * Disable NR dual connectivity and force secondary cell to be released if dual connectivity
+     * was active. This may result in radio link failure.
+     */
+    DISABLE_IMMEDIATE= 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 8f3b991..01236c6 100644
--- a/radio/1.6/vts/functional/radio_hidl_hal_api.cpp
+++ b/radio/1.6/vts/functional/radio_hidl_hal_api.cpp
@@ -63,7 +63,6 @@
     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);
-
     if (cardStatus.base.base.base.cardState == CardState::ABSENT) {
         ASSERT_TRUE(CheckAnyOfErrors(
                 radioRsp_v1_6->rspInfo.error,
@@ -259,3 +258,40 @@
     EXPECT_EQ(serial, radioRsp_v1_6->rspInfo.serial);
     EXPECT_EQ(::android::hardware::radio::V1_6::RadioError::NONE, radioRsp_v1_6->rspInfo.error);
 }
+
+/*
+ * Test IRadio.enableNrDualConnectivity() for the response returned.
+ */
+TEST_P(RadioHidlTest_v1_6, enableNrDualConnectivity) {
+    serial = GetRandomSerialNumber();
+
+    Return<void> res =
+            radio_v1_6->enableNrDualConnectivity(serial, NrDualConnectivityState::DISABLE);
+    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::INTERNAL_ERR,
+                                  ::android::hardware::radio::V1_6::RadioError::NONE}));
+}
+
+/*
+ * Test IRadio.isNrDualConnectivityEnabled() for the response returned.
+ */
+TEST_P(RadioHidlTest_v1_6, isNrDualConnectivityEnabled) {
+    serial = GetRandomSerialNumber();
+
+    Return<void> res = radio_v1_6->isNrDualConnectivityEnabled(serial);
+    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::INTERNAL_ERR,
+                                  ::android::hardware::radio::V1_6::RadioError::NONE}));
+}
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 d90aa80..784bcd9 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
@@ -78,6 +78,7 @@
     // Modem
     bool isModemEnabled;
     bool enableModemResponseToggle;
+    bool isNRDualConnectivityEnabled;
 
     ::android::hardware::hidl_bitfield<::android::hardware::radio::V1_4::RadioAccessFamily>
             networkTypeBitmapResponse;
@@ -765,6 +766,11 @@
     Return<void> sendCdmaSmsExpectMoreResponse_1_6(
             const ::android::hardware::radio::V1_6::RadioResponseInfo& info,
             const SendSmsResult& sms);
+
+    Return<void> enableNrDualConnectivityResponse(
+            const ::android::hardware::radio::V1_6::RadioResponseInfo& info);
+    Return<void> isNrDualConnectivityEnabledResponse(
+            const ::android::hardware::radio::V1_6::RadioResponseInfo& info, bool isEnabled);
 };
 
 /* 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 574990d..ffa384e 100644
--- a/radio/1.6/vts/functional/radio_response.cpp
+++ b/radio/1.6/vts/functional/radio_response.cpp
@@ -1055,6 +1055,12 @@
     parent_v1_6.notify(info.serial);
     return Void();
 }
+Return<void> RadioResponse_v1_6::enableNrDualConnectivityResponse(
+        const ::android::hardware::radio::V1_6::RadioResponseInfo& info) {
+    rspInfo = info;
+    parent_v1_6.notify(info.serial);
+    return Void();
+}
 
 Return<void> RadioResponse_v1_6::getDataCallListResponse_1_6(
         const ::android::hardware::radio::V1_6::RadioResponseInfo& info,
@@ -1099,3 +1105,11 @@
     parent_v1_6.notify(info.serial);
     return Void();
 }
+
+Return<void> RadioResponse_v1_6::isNrDualConnectivityEnabledResponse(
+        const ::android::hardware::radio::V1_6::RadioResponseInfo& info, bool isEnabled) {
+    rspInfo = info;
+    isNRDualConnectivityEnabled = isEnabled;
+    parent_v1_6.notify(info.serial);
+    return Void();
+}