Hai , i hope your are doing well . As per question there is no  chance for you to get cse/it/ ece in category 2or 3 . Because vit vellore campus as tough competition for cse branch below 3000 rank can get it and 5000 or above rank can get Chennai compus in category 1 .you can try other branches like civil eee you may get it in category 2 or 3.