diff --git a/core/api/current.txt b/core/api/current.txt
index ab4a42f7fd090..d5b0dd34c1daa 100644
--- a/core/api/current.txt
+++ b/core/api/current.txt
@@ -44334,6 +44334,7 @@ package android.telephony {
     method @Deprecated public int getPhoneCount();
     method public int getPhoneType();
     method @RequiresPermission(anyOf={"android.permission.READ_PRIVILEGED_PHONE_STATE", android.Manifest.permission.READ_PHONE_STATE}) public int getPreferredOpportunisticDataSubscription();
+    method @NonNull public String getPrimaryImei();
     method @Nullable @RequiresPermission(allOf={android.Manifest.permission.READ_PHONE_STATE, android.Manifest.permission.ACCESS_COARSE_LOCATION}) public android.telephony.ServiceState getServiceState();
     method @Nullable @RequiresPermission(allOf={android.Manifest.permission.READ_PHONE_STATE, android.Manifest.permission.ACCESS_COARSE_LOCATION}) public android.telephony.ServiceState getServiceState(int);
     method @Nullable public android.telephony.SignalStrength getSignalStrength();
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index c926a23f55ce0..665d3d0182ab9 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -17821,4 +17821,47 @@ public class TelephonyManager {
             ex.rethrowFromSystemServer();
         }
     }
+
+    /*
+     * Returns the primary IMEI (International Mobile Equipment Identity) of the device as
+     * mentioned in GSMA TS.37. {@link #getImei(int)} returns the IMEI that belongs to the selected
+     * slotID whereas this API {@link #getPrimaryImei()} returns primary IMEI of the device.
+     * A single SIM device with only one IMEI will be set by default as primary IMEI.
+     * A multi-SIM device with multiple IMEIs will have one of the IMEIs set as primary as
+     * mentioned in GSMA TS37_2.2_REQ_8.
+     *
+     * <p>Requires one of the following permissions
+     * <ul>
+     *     <li>If the calling app has been granted the READ_PRIVILEGED_PHONE_STATE permission; this
+     *     is a privileged permission that can only be granted to apps preloaded on the device.
+     *     <li>If the calling app is the device owner of a fully-managed device, a profile
+     *     owner of an organization-owned device, or their delegates (see {@link
+     *     android.app.admin.DevicePolicyManager#getEnrollmentSpecificId()}).
+     *     <li>If the calling app has carrier privileges (see {@link #hasCarrierPrivileges}) on any
+     *     active subscription.
+     *     <li>If the calling app is the default SMS role holder (see {@link
+     *     RoleManager#isRoleHeld(String)}).
+     *     <li>If the calling app has been granted the
+     *      {@link Manifest.permission#USE_ICC_AUTH_WITH_DEVICE_IDENTIFIER} permission.
+     * </ul>
+     *
+     * @return Primary IMEI of type string
+     * @throws UnsupportedOperationException if the radio doesn't support this feature.
+     * @throws SecurityException if the caller does not have the required permission/privileges
+     */
+    @NonNull
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_GSM)
+    public String getPrimaryImei() {
+        try {
+            ITelephony telephony = getITelephony();
+            if (telephony == null) {
+                Rlog.e(TAG, "getPrimaryImei(): IPhoneSubInfo instance is NULL");
+                throw new IllegalStateException("Telephony service not available.");
+            }
+            return telephony.getPrimaryImei(getOpPackageName(), getAttributionTag());
+        } catch (RemoteException ex) {
+            Rlog.e(TAG, "getPrimaryImei() RemoteException : " + ex);
+            throw ex.rethrowAsRuntimeException();
+        }
+    }
 }
diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index 9445d0763c987..d1da70da40d9e 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -1319,6 +1319,16 @@ interface ITelephony {
      */
     String getImeiForSlot(int slotIndex, String callingPackage, String callingFeatureId);
 
+    /**
+     * Returns the primary IMEI of the device
+     *
+     * @param callingPackage The package name of the caller
+     * @param callingFeatureId The feature Id of the calling package
+     * @throws UnsupportedOperationException if the radio doesn't support this feature.
+     * @throws SecurityException if the caller does not have the required permission/privileges
+     */
+    String getPrimaryImei(String callingPackage, String callingFeatureId);
+
     /**
      * Returns the Type Allocation Code from the IMEI for the given slot.
      *
diff --git a/telephony/java/com/android/internal/telephony/RILConstants.java b/telephony/java/com/android/internal/telephony/RILConstants.java
index a1257e39f6685..37e26f647a964 100644
--- a/telephony/java/com/android/internal/telephony/RILConstants.java
+++ b/telephony/java/com/android/internal/telephony/RILConstants.java
@@ -500,7 +500,7 @@ public interface RILConstants {
     int RIL_REQUEST_GET_SIM_PHONEBOOK_CAPACITY = 149;
     int RIL_REQUEST_GET_SIM_PHONEBOOK_RECORDS = 150;
     int RIL_REQUEST_UPDATE_SIM_PHONEBOOK_RECORD = 151;
-
+    int RIL_REQUEST_DEVICE_IMEI = 152;
     /* The following requests are not defined in RIL.h */
     int RIL_REQUEST_HAL_NON_RIL_BASE = 200;
     int RIL_REQUEST_GET_SLOT_STATUS = 200;