Added Prof Kumar as user

app.py

@@ -198,6 +198,9 @@ def check_auth(username, password):
     elif (user == 'nischal' and password == 'veytel'):
         create_csv()
         return True
+    elif (user == 'vijayakumar' and password == 'veytel'):
+        create_csv()
+        return True
     elif (user == 'konstantine' and password == 'upmc2023'):
         create_csv()
         return True