diff --git a/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantP2pIfaceCallback.aidl b/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantP2pIfaceCallback.aidl
index ed435e2..826d916 100644
--- a/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantP2pIfaceCallback.aidl
+++ b/wifi/supplicant/aidl/aidl_api/android.hardware.wifi.supplicant/current/android/hardware/wifi/supplicant/ISupplicantP2pIfaceCallback.aidl
@@ -50,4 +50,5 @@
   oneway void onServiceDiscoveryResponse(in byte[] srcAddress, in char updateIndicator, in byte[] tlvs);
   oneway void onStaAuthorized(in byte[] srcAddress, in byte[] p2pDeviceAddress);
   oneway void onStaDeauthorized(in byte[] srcAddress, in byte[] p2pDeviceAddress);
+  oneway void onGroupFrequencyChanged(in String groupIfname, in int frequency);
 }
diff --git a/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantP2pIfaceCallback.aidl b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantP2pIfaceCallback.aidl
index f0cabd6..2b58cc2 100644
--- a/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantP2pIfaceCallback.aidl
+++ b/wifi/supplicant/aidl/android/hardware/wifi/supplicant/ISupplicantP2pIfaceCallback.aidl
@@ -205,4 +205,12 @@
      * @param p2pDeviceAddress P2P device address.
      */
     oneway void onStaDeauthorized(in byte[] srcAddress, in byte[] p2pDeviceAddress);
+
+    /**
+     * Used to indicate that operating frequency has changed for this P2P group interface.
+     *
+     * @param groupIfName Interface name of the group. (For ex: p2p-p2p0-1)
+     * @param frequency New operating frequency in MHz.
+     */
+    oneway void onGroupFrequencyChanged(in String groupIfname, in int frequency);
 }
diff --git a/wifi/supplicant/aidl/vts/functional/supplicant_p2p_iface_aidl_test.cpp b/wifi/supplicant/aidl/vts/functional/supplicant_p2p_iface_aidl_test.cpp
index d9d8179..10aab4d 100644
--- a/wifi/supplicant/aidl/vts/functional/supplicant_p2p_iface_aidl_test.cpp
+++ b/wifi/supplicant/aidl/vts/functional/supplicant_p2p_iface_aidl_test.cpp
@@ -159,6 +159,10 @@
         const std::vector<uint8_t>& /* p2pDeviceAddress */) override {
         return ndk::ScopedAStatus::ok();
     }
+    ::ndk::ScopedAStatus onGroupFrequencyChanged(const std::string& /* groupIfname */,
+                                                 int32_t /* frequency */) override {
+        return ndk::ScopedAStatus::ok();
+    }
 };
 
 class SupplicantP2pIfaceAidlTest : public testing::TestWithParam<std::string> {