Hello Bhimanna,

Yes, you can select your preferred branch if you have 75% in PCM and rank must lie between the opening and closing rank of the Institute. Before you take admission in the course Learn C, C++, Java, Python any one of your choices and some fundamentals which will help you throughout the course.

All the Best. 

Hi,
Well there will be no problem if you have taken an extra subject which is BIology in your case . Your eligibility will be crosschecked only for the aggregate marks in Physics , Chemistry and Maths and also the JEE - Mains score.

But for taking admission in CSE branch you need to clear the cut-off of that branch having a decent score in JEE Mains 2019.

Just be chilled and all the best for your future !