B.Tech Eligibility

Admission is through counseling based on the rank obtained in Maharashtra Common Entrance Test (MHT-CET 2017) conducted by the Competent Authority or rank obtained in JEE (Mains) 2017 conducted by the Competent Authority.

For which university are you talking about?

Hello Himanshi, yes indeed. For admissions into bio related engineering courses taking biology in 12th is perfectly acceptable. However, there are some institutions that have mandated maths and physics as compulsory and choice between chemistry or biology. Hence, you need to check before applying.
Best wishes to you.

Yes, you can choose this depends on your NEET rank.

Yes, JNU offers B.Tech course.

Hello Rounak,
It is very nice to hear from you that you are interested in doing your engineering from Punjab University located in Chandigarh. It's quite well known in Punjab and whole of North India as an institute of repute. I am attaching a link that will give you all the required information about different aspects of the admission process for different courses in this university. https://www.shiksha.com/university/panjab-university-Chandigarh-4026/admission
Best wishes to you.

Go through the link below -
https://www.shiksha.com/b-tech/colleges/b-tech-in-biotechnology-engineering-colleges-Andhra-Pradesh.