hey yokesh

Based on the past record you have no chance with the other branches except for civil engineering.That is your last hope at vit chennai.however you can try your luck with the other branches like vit bhopal or ap.You have more chance of getting a seat there!you can possibly get a eee also!They are new campuses relatively their quality might not be as good as chennai or vellore ! However all tjis depends on what course you actually want.So try to get a good course like ece or civil .

Your other option is to try from other universities like srm or manipal.They are equally good butnot the best.Again depends on whether you have written their entrance exams.Try for bitsat also.

All  the best ,choose wisely based on your intrest and scope.See what you genuinely like instead of just doing engineering because i have seen many regreting after taking the wrong course.

To answer your question,you dont stand any chance at vit vellore for elecronics and instrumentation.

Cheers!