diff --git a/src/Adyen/Client.php b/src/Adyen/Client.php
index 4971f358..031507f8 100644
--- a/src/Adyen/Client.php
+++ b/src/Adyen/Client.php
@@ -30,6 +30,7 @@ class Client
     const ENDPOINT_TERMINAL_CLOUD_LIVE = "https://terminal-api-live.adyen.com";
     const ENDPOINT_TERMINAL_CLOUD_US_LIVE = "https://terminal-api-live-us.adyen.com";
     const ENDPOINT_TERMINAL_CLOUD_AU_LIVE = "https://terminal-api-live-au.adyen.com";
+    const ENDPOINT_TERMINAL_CLOUD_IN_LIVE = "https://terminal-api-live-in.adyen.com";
     const ENDPOINT_TERMINAL_CLOUD_APSE_LIVE = "https://terminal-api-live-apse.adyen.com";
     const ENDPOINT_CHECKOUT_TEST = "https://checkout-test.adyen.com";
     const ENDPOINT_CHECKOUT_LIVE_SUFFIX = "-checkout-live.adyenpayments.com/checkout";
diff --git a/src/Adyen/Region.php b/src/Adyen/Region.php
index 15370df7..d62326e3 100644
--- a/src/Adyen/Region.php
+++ b/src/Adyen/Region.php
@@ -4,12 +4,35 @@
 
 class Region
 {
+    /**
+     * European Union region
+    */
     const EU = "eu";
+    
+    /**
+     * United States region
+     */
     const US = "us";
+
+    /**
+     * Australia region
+     */
     const AU = "au";
+    
+    /**
+     * India region
+     */
     const IN = "in";
+
+    /**
+     * Asia-Pacific, South East region
+     */
     const APSE = "apse";
 
+   /**
+     * List of all valid regions
+     * @var array<int,string>
+     */
     const VALID_REGIONS = [
         self::EU,
         self::US,
@@ -18,10 +41,15 @@ class Region
         self::APSE
     ];
 
+    /**
+     * Maps regions to their respective Terminal API endpoints.
+     * @var array<string, string>
+     */
     const TERMINAL_API_ENDPOINTS_MAPPING = [
         self::EU => Client::ENDPOINT_TERMINAL_CLOUD_LIVE,
         self::US => Client::ENDPOINT_TERMINAL_CLOUD_US_LIVE,
         self::AU => Client::ENDPOINT_TERMINAL_CLOUD_AU_LIVE,
+        self::IN => Client::ENDPOINT_TERMINAL_CLOUD_IN_LIVE,
         self::APSE => Client::ENDPOINT_TERMINAL_CLOUD_APSE_LIVE,
     ];
 }
diff --git a/tests/Unit/RegionTest.php b/tests/Unit/RegionTest.php
new file mode 100644
index 00000000..a99f0d7b
--- /dev/null
+++ b/tests/Unit/RegionTest.php
@@ -0,0 +1,55 @@
+<?php
+
+namespace Adyen\Tests\Unit;
+
+use PHPUnit\Framework\TestCase;
+use Adyen\Region;
+
+class RegionTest extends TestCase
+{
+    public function testValidRegions()
+    {
+        $expected = [
+            "eu",
+            "us",
+            "au",
+            "in",
+            "apse",
+        ];
+
+        $this->assertEquals(
+            $expected, 
+            Region::VALID_REGIONS,
+            "VALID_REGIONS should match the expected regions."
+        );
+    }
+
+    public function testTerminalApiEndpointsMapping()
+    {
+        $expected = [
+            "eu" => "https://terminal-api-live.adyen.com",
+            "us" => "https://terminal-api-live-us.adyen.com",
+            "au" => "https://terminal-api-live-au.adyen.com",
+            "in" => "https://terminal-api-live-in.adyen.com",
+            "apse" => "https://terminal-api-live-apse.adyen.com",
+        ];
+
+        $this->assertEquals(
+            $expected, 
+            Region::TERMINAL_API_ENDPOINTS_MAPPING, 
+            "TERMINAL_API_ENDPOINTS_MAPPING should match the expected mappings.");
+    }
+
+    public function testTerminalApiEndpointsExistsForAllRegions()
+    {
+        $regionsWithEndpoints = array_keys(Region::TERMINAL_API_ENDPOINTS_MAPPING);
+        $regions = Region::VALID_REGIONS;
+
+        $expected = array_diff($regions, $regionsWithEndpoints);
+
+        $this->assertEmpty(
+            $expected,
+            "Every region should be mapped to an endpoint."
+        );
+    }
+}
\ No newline at end of file