yes ritwik with 80 percentile in jee you can get ece branch in many goverment colleges you can take admission in mits gwalior,jec(Jabalpur), davv indore.

these are some colleges you can get ece branch

ECE is comparatively easy to get with respect to the percentile that you've obtained in JEE Mains. However, I wouldn't be too sure about getting it in the main reputed institutions unless I get to know the score of your 12th class exams, as many institutions consider that too.