Physics

Please refer to the link provided below for an exhaustive list of colleges which offer B.Tech courses in India. You should be able to use the filters available on the web page to navigate to a college of your choice. Additionally, you can also download their brochure which contains important information like course details, entrance exams (if any), application dates, forms, placement information, fee structures, etc.
https://www.shiksha.com/b-tech/colleges/b-tech-colleges-india

Eligibility for Ph.D in Nuclear Physics is as follows:
1) M.Phil degree and PG degree in a relevant discipline with minimum 55% marks or an equivalent grade from a university or from a recognized institution of higher training.
2) 5-years of work experience at a senior level in teaching/professional experience.

Below mentioned are the Top 5 courses in Canada:
Engineering
Information technology
Business management
Pharmacy technician
Hospitality management

Please refer to the link provided below for details regarding admission for various courses in Annamalai University. You should be able to navigate to a college of your choice using the filters on the web page. Additionally, you can also download their brochure which contains important information regarding admissions, application dates, entrance exams(if any) etc.
https://www.shiksha.com/university/annamalai-university-tamil-nadu-other-25297

Hello Vikrant,
If you have filled up form stating that you have taken CS, then you have no option and have to appear for this paper also.

Give JEE Mains, score good marks and try to get admission in a good private college or your state govt. engineering college as they need only 60% in class 12th.
You cannot get admission in NITs as your percentage is less than 75%.

Physics by Fiziks
Career Endeavour
UGC Point
Aryan Classes
Above listed are some of the best coaching centers for M.Sc (Physics) in Delhi.

EdX is an open online course providing website that provides the reputed courses from various Universities and colleges by charging a minimal amount of money. Some of the courses are even free of cost. They certify you the course after its completion as well.
Yes, it boosts the chances of getting admission in USA's top universities.

How to become an astronomer:
To become an astronomer, a Ph.D degree is compulsory.
First, you have to complete your 10+2 examination under the science stream, especially in mathematics and physics.
After that, you can join an undergraduate course in astronomy. You can join for an honors/major in physics with mathematics as a secondary subject.
Thereafter, you can join postgraduate degree in physics or astronomy.
After competing Masters degree, you can do specialization in astronomy leading to Ph.D.