M.Sc

That depends on which course you are applying for. Since you have already completed your PG, I am assuming you are looking for a scholarship for M.Phil or Ph.D. You can apply for scholarships if you qualify for the merit list of institutes offering scholarships. I have attached a link with this post which covers scholarships offered in engineering, sciences, and humanities.
https://www.shiksha.com/engineering/articles/phd-made-attractive-rs-6-to-9-4-lakh-in-scholarship-blogId-4900

Please check on important application dates for M.sc physics. Admissions are now closed in most colleges. You can prepare to apply for the next year. However, there might be a few colleges which are still accepting students in their science courses.
B.Sc.(Genl.)/B.Sc. (Pass) (3 Years course after 10+2) with 60% or above marks in the aggregate and 60% or above marks in Physics. from Delhi University or any other University whose Examination is recognized as equivalent to Delhi University and fulfil other conditions of eligibility.

Please refer to the link provided below for details regarding courses offered by the University of Madras:
https://www.shiksha.com/university/university-of-madras-chepauk-chennai-23679

Some of the top colleges which offer courses in M.Phil through distance are mentioned in the link provided below.
https://www.shiksha.com/humanities-social-sciences/colleges/m-phil-colleges-india

Master Courses:
The Master's degree courses in this field are of two years:
Master of Science in Microbiology
Master of Science in Applied Microbiology
Master of Science in Medical Microbiology
Master of Science in Microbial Genetics and Bioinformatics
Specializations in Microbiology
Agricultural Microbiology
Industrial Microbiology
Evolutionary Microbiology
Nano Microbiology
Cellular Microbiology
Soil Microbiology
Veterinary Microbiology
Generation Microbiology
Microbial
Water Microbiology
Pharmaceutical Microbiology
Microbial Genetics
Environmental Microbiology

Please refer the link provided below for a list of colleges which offer courses in M.Sc. (Applied Genetics) in Bangalore. You should be able to download their brochure which contains all details regarding admissions in their college.
https://www.shiksha.com/science/colleges/m-sc-genetics-colleges-bangalore