B.Tech

Hello Rohit,
As per your rank, you will not get good colleges under IPU. So, look forward to other colleges via other exams, however if you are inclined to take admission via IPU only. Check here:
https://www.shiksha.com/b-tech/resources/ggsipu-college-predictor

It depends on the exam and in case it is COMEDK, you stand a great chance to get into a good college.

Biotechnology is a rapidly developing field. Many private businesses are exploring this field and heavily investing in it. It is safe to say that there are ample job opportunities for B.E./B.Tech. Biotechnology Graduates in private sector. Government sector too offers job opportunities, but not in t

Please check the following link for complete detail about the college you can get in the counselling with your marks and rank secured:
https://www.shiksha.com/b-tech/resources/mhcet-college-predictor

You need to opt for physics, chemistry and maths to pursue food technology.

If you have lots of money to spend then it's good but if you are a middle class person like me then appear for COMEDK exam and get a rank under 1500 then at that rank you will get the prime colleges like MSRIT or BMSCE for CSE.