Hello Aspirant,

You query is little confusing. If you wish to join M.Sc Physics course , then you can visit the official website of the college or university of your choice and apply for the same for the upcoming batch. Once the admission process is over , it is not possible to join that batch unless you go through any vacant management seat. But M.Sc programs will usually have limited seats and many applicants, hence vacancies might be rare. The basic eligibility for M.Sc Physics is B.Sc degree with Physics as major and  Chemistry and Mathematics as minor with a minimum of 55% marks.  You may visit the college website to see the admission procedure ,dates and eligibility criteria etc.

https://university.careers360.com/colleges/list-of-msc-in-physics-universities-in-india

All the best