diff --git a/AconfigFlags.bp b/AconfigFlags.bp
index 2d164f8..383ddb3 100644
--- a/AconfigFlags.bp
+++ b/AconfigFlags.bp
@@ -17,6 +17,7 @@
     ":android.companion.flags-aconfig-java{.generated_srcjars}",
     ":android.content.pm.flags-aconfig-java{.generated_srcjars}",
     ":android.hardware.radio.flags-aconfig-java{.generated_srcjars}",
+    ":android.location.flags-aconfig-java{.generated_srcjars}",
     ":android.nfc.flags-aconfig-java{.generated_srcjars}",
     ":android.os.flags-aconfig-java{.generated_srcjars}",
     ":android.os.vibrator.flags-aconfig-java{.generated_srcjars}",
@@ -134,6 +135,21 @@
     aconfig_declarations: "com.android.text.flags-aconfig",
 }
 
+// Location
+aconfig_declarations {
+    name: "android.location.flags-aconfig",
+    package: "android.location.flags",
+    srcs: [
+        "location/java/android/location/flags/*.aconfig",
+    ],
+}
+
+java_aconfig_library {
+    name: "android.location.flags-aconfig-java",
+    aconfig_declarations: "android.location.flags-aconfig",
+    defaults: ["framework-minus-apex-aconfig-java-defaults"],
+}
+
 // NFC
 aconfig_declarations {
     name: "android.nfc.flags-aconfig",
diff --git a/location/api/current.txt b/location/api/current.txt
index 33effdd..0c23d8c 100644
--- a/location/api/current.txt
+++ b/location/api/current.txt
@@ -412,7 +412,9 @@
     field public static final int TYPE_GPS_L1CA = 257; // 0x101
     field public static final int TYPE_GPS_L2CNAV = 258; // 0x102
     field public static final int TYPE_GPS_L5CNAV = 259; // 0x103
-    field public static final int TYPE_IRN_L5CA = 1793; // 0x701
+    field @FlaggedApi(Flags.FLAG_GNSS_API_NAVIC_L1) public static final int TYPE_IRN_L1 = 1795; // 0x703
+    field @FlaggedApi(Flags.FLAG_GNSS_API_NAVIC_L1) public static final int TYPE_IRN_L5 = 1794; // 0x702
+    field @Deprecated public static final int TYPE_IRN_L5CA = 1793; // 0x701
     field public static final int TYPE_QZS_L1CA = 1025; // 0x401
     field public static final int TYPE_SBS = 513; // 0x201
     field public static final int TYPE_UNKNOWN = 0; // 0x0
diff --git a/location/java/android/location/GnssNavigationMessage.java b/location/java/android/location/GnssNavigationMessage.java
index 637f905..32e636f 100644
--- a/location/java/android/location/GnssNavigationMessage.java
+++ b/location/java/android/location/GnssNavigationMessage.java
@@ -16,10 +16,12 @@
 
 package android.location;
 
+import android.annotation.FlaggedApi;
 import android.annotation.IntDef;
 import android.annotation.IntRange;
 import android.annotation.NonNull;
 import android.annotation.TestApi;
+import android.location.flags.Flags;
 import android.os.Parcel;
 import android.os.Parcelable;
 
@@ -41,7 +43,7 @@
     @Retention(RetentionPolicy.SOURCE)
     @IntDef({TYPE_UNKNOWN, TYPE_GPS_L1CA, TYPE_GPS_L2CNAV, TYPE_GPS_L5CNAV, TYPE_GPS_CNAV2,
             TYPE_SBS, TYPE_GLO_L1CA, TYPE_QZS_L1CA, TYPE_BDS_D1, TYPE_BDS_D2, TYPE_BDS_CNAV1,
-            TYPE_BDS_CNAV2, TYPE_GAL_I, TYPE_GAL_F, TYPE_IRN_L5CA})
+            TYPE_BDS_CNAV2, TYPE_GAL_I, TYPE_GAL_F, TYPE_IRN_L5CA, TYPE_IRN_L5, TYPE_IRN_L1})
     public @interface GnssNavigationMessageType {}
 
     // The following enumerations must be in sync with the values declared in gps.h
@@ -74,8 +76,18 @@
     public static final int TYPE_GAL_I = 0x0601;
     /** Galileo F/NAV message contained in the structure. */
     public static final int TYPE_GAL_F = 0x0602;
-    /** IRNSS L5 C/A message contained in the structure. */
+    /**
+     * NavIC L5 C/A message contained in the structure.
+     * @deprecated Use {@link #TYPE_IRN_L5} instead.
+     */
+    @Deprecated
     public static final int TYPE_IRN_L5CA = 0x0701;
+    /** NavIC L5 message contained in the structure. */
+    @FlaggedApi(Flags.FLAG_GNSS_API_NAVIC_L1)
+    public static final int TYPE_IRN_L5 = 0x0702;
+    /** NavIC L1 message contained in the structure. */
+    @FlaggedApi(Flags.FLAG_GNSS_API_NAVIC_L1)
+    public static final int TYPE_IRN_L1 = 0x0703;
 
     /**
      * The status of the GNSS Navigation Message
@@ -254,8 +266,15 @@
             case TYPE_GAL_F:
                 return "Galileo F";
             case TYPE_IRN_L5CA:
-                return "IRNSS L5 C/A";
+                return "NavIC L5 C/A";
             default:
+                if (Flags.gnssApiNavicL1()) {
+                    if (mType == TYPE_IRN_L5) {
+                        return "NavIC L5";
+                    } else if (mType == TYPE_IRN_L1) {
+                        return "NavIC L1";
+                    }
+                }
                 return "<Invalid:" + mType + ">";
         }
     }
@@ -303,9 +322,12 @@
      * navigation message, in the range of 1-25 (Subframe 1, 2, 3 does not contain a 'frame id' and
      * this value can be set to -1.)</li>
      * <li> For Beidou CNAV1 this refers to the page type number in the range of 1-63.</li>
-     * <li> For IRNSS L5 C/A subframe 3 and 4, this value corresponds to the Message Id of the
+     * <li> For NavIC L5 subframe 3 and 4, this value corresponds to the Message Id of the
      * navigation message, in the range of 1-63. (Subframe 1 and 2 does not contain a message type
      * id and this value can be set to -1.)</li>
+     * <li> For NavIC L1 subframe 3, this value corresponds to the Message Id of the navigation
+     * message, in the range of 1-63. (Subframe 1 and 2 does not contain a message type id and this
+     * value can be set to -1.)</li>
      * </ul>
      */
     @IntRange(from = -1, to = 120)
@@ -339,8 +361,10 @@
      * navigation message, in the range of 1-3.</li>
      * <li> For Beidou CNAV2, the submessage id corresponds to the message type, in the range
      * 1-63.</li>
-     * <li> For IRNSS L5 C/A, the submessage id corresponds to the subframe number of the
-     * navigation message, in the range of 1-4.</li>
+     * <li> For NavIC L5, the submessage id corresponds to the subframe number of the navigation
+     * message, in the range of 1-4.</li>
+     * <li> For NavIC L1, the submessage id corresponds to the subframe number of the navigation
+     * message, in the range of 1-3.</li>
      * </ul>
      */
     @IntRange(from = 1)
@@ -363,7 +387,7 @@
      * <p>The bytes (or words) specified using big endian format (MSB first).
      *
      * <ul>
-     * <li>For GPS L1 C/A, IRNSS L5 C/A, Beidou D1 &amp; Beidou D2, each subframe contains 10
+     * <li>For GPS L1 C/A, NavIC L5, Beidou D1 &amp; Beidou D2, each subframe contains 10
      * 30-bit words. Each word (30 bits) should be fit into the last 30 bits in a 4-byte word (skip
      * B31 and B32), with MSB first, for a total of 40 bytes, covering a time period of 6, 6, and
      * 0.6 seconds, respectively.</li>
@@ -383,6 +407,9 @@
      * 75 bytes. subframe #3 consists of 264 data bits that should be fit into 33 bytes.</li>
      * <li>For Beidou CNAV2, each subframe consists of 288 data bits, that should be fit into 36
      * bytes.</li>
+     * <li> For NavIC L1, subframe #1 consists of 9 data bits that should be fit into 2 bytes (skip
+     * B10-B16). subframe #2 consists of 600 bits that should be fit into 75 bytes. subframe #3
+     * consists of 274 data bits that should be fit into 35 bytes (skip B275-B280).</li>
      * </ul>
      */
     @NonNull
diff --git a/location/java/android/location/flags/gnss.aconfig b/location/java/android/location/flags/gnss.aconfig
new file mode 100644
index 0000000..c471a27
--- /dev/null
+++ b/location/java/android/location/flags/gnss.aconfig
@@ -0,0 +1,8 @@
+package: "android.location.flags"
+
+flag {
+    name: "gnss_api_navic_l1"
+    namespace: "location"
+    description: "Flag for GNSS API for NavIC L1"
+    bug: "302199306"
+}
\ No newline at end of file