Dear Prince

As you have got 7 rank in waiting list in aligarh Muslim university, yes you have chances to get B.Tech CSE or ECE but I would like you to know that by the time the counselling reach the waiting round , almost all seats are filled , so you may not have the choice to get CSE or ECE only. So I would suggest that you keep that in mind and go for more branches so you have a good chance to get in. I hope it helped