diff --git a/Signup2.html b/Signup2.html
index 23d8056c..97aba7e5 100644
--- a/Signup2.html
+++ b/Signup2.html
@@ -219,7 +219,7 @@ <h2 class="auth-title">Welcome Back</h2>
             </div>
 
             <div class="social-signin">
-              <button type="button" class="social-btn">
+              <button type="button" class="social-btn" id="googleSignInBtn">
                 <i class="fa-brands fa-google"></i> Google
               </button>
               <button type="button" class="social-btn">
diff --git a/platform.html b/platform.html
index c4eeea06..99ed3623 100644
--- a/platform.html
+++ b/platform.html
@@ -357,6 +357,18 @@ <h2>Codeforces</h2>
           <h2>GeeksforGeeks</h2>
           <a href="https://geeksforgeeks.org" target="_blank">Explore Now</a>
         </div>
+
+        <div class="platform-card">
+          <img src="img/codechef.png" alt="codechef Logo">
+          <h2>CodeChef</h2>
+          <a href="https://www.codechef.com/" target="_blank">Explore Now</a>
+        </div>
+
+        <div class="platform-card">
+          <img style="padding-top: 50px;padding-bottom: 50px;" src="img/new-cn-logo.png" alt="code360 Logo">
+          <h2>Code 360 by Coding Ninjas</h2>
+          <a href="https://www.codingninjas.com" target="_blank">Explore Now</a>
+        </div>
       </div>
     </section>
   </main>