I would advise you against going after Chemical at Lower IITs, unless youre genuinely interested in that branch. Of course, my advice would be different incase you were into Top 5-7 IITs, but not in this case. Being interested in CSE, your best bet is CSE or ECE at NIT Jamshedpur, Raipur and many other Good Tier 2 NITs or maybe Core branches like Mechanical/Electrical at Top NITs. Most of the NITs nowadays have strong Placements besides having excellent faculty and infrastructure.

For JEE Advanced College Prediction

https://engineering.careers360.com/jee-advanced-college-predictor?icn=QnA&ici=qna_answer

For JEE Main College Prediction

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

Hello Aspirant,

See if you are placement oriented like you want to have better exposure in corporate sector and want to get a job by completing your B.Tech then definitely you should go with CSE branch in mentioned NITs because the NITs that you have mentioned are good NITs but if you want to enter into research field and want to do much higher studies then you can go with Chemical engineering in IIT Patna.

You can use JEE-Main College Predictor to predict your chances of admission in different engineering colleges of India on the basis of your JEE-Main 2021 result :-

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

To have a list of all those colleges which you can get based upon JEE-Advance 2021 score you can use JEE-Advance College Predictor:-

https://engineering.careers360.com/jee-advanced-college-predictor?icn=QnA&ici=qna_answer

I hope this information helps you.

Good Luck!!