Science

Yes, of course, you need to focus mainly on NCERT books and along with that, you need to do constant practice of questions as practice is the key to qualify NEET. Also, along with it, go through the previous years question papers to get an insight into the NEET exam.

It's a bit difficult for you to get admission because previous records show that they need a higher rank for OC category.

Yes, you can apply for M.Sc in Microbiology as it requires B.Sc in zoology, botany, microbiology or chemistry.
All the best.

Yes, many questions are there from NCERT. You just need to clear your concepts and go through some reference books of Arihant Publication and Pradeep.

The general criteria for best 4 calculation is that you must add one language and 3 academic subjects from list A. So, if in place of maths, you wish to add any subject like physical education or music then there would be a deduction of 2.5% from your total percentage after calculating the best four

DU offers a wide variety of courses for students of commerce without maths. BA in English, Hindi, Sanskrit, Political Sc., Psychology and Anthropology. Foreign languages like French, German and Korean are also offered, along with BA.

Frankly speaking, IIITs are well known for information technology courses. It's quite tough to differentiate between these institutions. However, to help you I am attaching a link that will give you all the required information about not only these institutions but all the colleges in India which ar

Dear Anchal,
There are a number of eligibility criteria a candidate must fulfil, in order to apply for MCA. All the criteria are outlined on this web page:
https://bitmesra.ac.in/UploadedDocuments/admadmission/files/MCA 2019 - Eligibility Criteria.Pdf

No, there is no criteria specifically for mathematics marks. However, one must have 45% of passing marks in aggregate and also must include mathematics in best four.