ICAR AIEEA

Yes, being a PCB student you can get the course whichever you wish for except for engineering in some fields and agriculture is a very good option you should get ahead.
All the best!

For that you need INDIAN NATIONALITY if you have indian nationallity then for sure you can apply for it.

No, the cut off for OBC is still high you cant get admission this time.

Yes, you can go with these subjects since only Physics and Chemistry are compulsory.
3ed subject can be either biology/agriculture/maths. Can apply for ICAR.

No inorder to get in B.Sc. Biotechnology it is not needed to give the ICAR AIEEA exam as it is mainly for B.Sc. Agriculture course you can opt for multiple colleges that provide biotechnology courses and have there own process of selection based on merit or written exam.

Yes AIEEA-UG exam guide is a very good guide to get admission in B.Sc. Agriculture and has information and questions from all the subjects you need to get in the course.

ICAR UG exam pattern is like
Physics - 50 questions
Chemistry -50 questions
Agriculture /bio - 50 question
As per the analysis it's seen that Physics in ICAR is not much difficult the questions solve easily. But in order to get a good college, you need to concentrate more on Chemistry and bio. And should give time and effort to Physics also. All the best.

It is a government university and the admission process is based on merit obtained in the entrance conducted by the university itself
UAS offers B.Tech in
food Science
Agricultural engineering
UAS offer B.Sc. In
Agriculture maco. Forestry
Seri
Agricultural biotechnology
ICAR AIEEA 2022 Application form will be released through online mode by April 2022. NTA ICAR AIEEA 2022 is conducted to offer admission to UG & PG courses. Indian Council of Agricultural Research (ICAR) can organize the All India Entrance Examination for Admission (AIEEA). .