Botany

Hi Annamalai University is offering B.Sc Botany and zoology from distance you can do it from there they have center all over India. Website www.annamalaiuniversity.ac.in
College like Utkal University, Berhampur University, Sambalpur University are offering same undergraduate degree from distance in Orissa. All the best.

Yes, you are eligible for IIT JAM chemistry.

Yes, you are eligible for M.Sc in Biotechnology.

A minimum aggregate score of 50% (45% for SC/ST/OBC candidates) at the level of graduation. The average tuition fee charged for the course in India ranges between INR. 5000 and INR. 2 Lacs for a span of 2 years. Admissions are based on common entrance test or on merit list. I hope the answer will help you, please feel free to ask any query.

The last date to fill up form at north Odisha University is 21 June, 2019.

Yes, Dyal Singh College has B.Sc. Hons in Botany course. As Dyal Singh college comes under University of Delhi, so take admission in this college. You have to first fill the registration form for Delhi university (DU) and then wait for the release of cut offs and then you can apply for the admission in Dyal Singh college on basis of your 12th score only if you met their cut-off requirement. For more details about Dyal Singh College, refer to the following link:
https://www.shiksha.com/college/dsc-dyal-singh-college-lodi-colony-Delhi-2319.