HII YASH AWASTHI,

IF YOU WANT TO BE PART  OF IIT THEN YOU NEED 40% OF TOTAL MARKS OF JEE ADVANCE PAPER  .

FOR GENERAL PwD  IF YOU SCORE NEARLY 20%  TO 25% THEN YOU SURELY GET ece  IN ANY   GOOD IIT. IF JEE ADVANCE PAPER GO TOO HARD to LIKE 2015 AND 2016 THEN IF YOU SCORE 15% TO 20% THEN ALSO YOU SURELY GET ece IN IIT.  I HOPE IT WILL HELP YOU A LOT.

You can calculate your approximate JEE  ranking on probable college which you will be getting by going to careers360  college predictor and filling in all the required details to calculate your approximate rank and college.

I HOPE THIS WILL HELP YOU LOTS.

BEST OF LUCK