Engineering Entrance Exam

it is quite difficult but u can get a good college just b confident to take desicion and try to become master of ur course
wish u gud luck

The cut off for SC category is 52
Check the links below for rank and colleges:
https://www.resonance.ac.in/jee-main-answer-key-solutions/jee-main-2016-rank-predictor.php
https://www.shiksha.com/jee-mains-college-predictor

The cut off for ST category is 48
Use the links mentioned below:
https://www.resonance.ac.in/jee-main-answer-key-solutions/jee-main-2016-rank-predictor.php
https://www.shiksha.com/jee-mains-college-predictor

at this rank mechanical and civil is what u can get

I must say, very less or no chances.

Majority of Indian universities admits student to BSc Physics program on the basis of +2 stage marks. Few universities have thier own entrance exam for BSc admission but there are no joint entrance exam as it happens in the case of Medical and Engineering.

Dropping a year requires a lot of conviction, guts and focussed mind to succeed at the end. Drop only if you have no other good option available. And if you decide to drop, make sure you land in a very good college so that you can explain this decision to companies or admission officers in future if you plan to do masters.

Use the Shiksha rank predictor to know your estimated rank.
https://www.shiksha.com/jee-mains-rank-predictor

Use Resonance /FITJEE /Allen/ Engineering 360 Rank predictor app.