M.Sc

I you have completed your B.Sc. Then your can pursue M.Sc. From same subject. For that you should give the Exam like CUET if you want to do Masters from a central university otherwise you can take admission in any of your state private university as well.
You can pursue masters from Indias top colleges like-
St. Stephens college, Hindu college and other college of University of Delhi.
Jawahar lala Nehru University (JNU)
Banaras Hindu University (BHU)
And also do masters from top IITs.
This may help.

Admission to courses will be done on the basis of qualifying entrance test followed by personal counselling conducted by the university itself.
Candidates who have cleared NEET PG exam will also be considered for selection to MD/MS courses.
Further u even have eligibility and reservation criteria where students can enjoy to the maximum benefits offered by PGIMER

Master of Science (M.Sc) in Chemistry is a full-time two-year (4 Semesters) postgraduate course offered by the Faculty of Physical Sciences (Department of Chemistry) at Punjabi University, Patiala.
In order to get admission you have to crack the Entrance test conducted by Punjabi University and the eligibility criterion for the entrance exam is the degree of B.Sc. with Chemistry or B.Sc. (Hons. School) in Chemistry.
So, the cut-off depends on your ability to score in that entrance exam.

50-60% aggregate marks in the graduation along with good qualified scores in the entrance exam with approximately 60% is required to take admission in M. Sc. in Medical Imaging Technology.

The AIIMS 2023 admission for M.Sc. Optometry is going to start from March 2023. So you can wait till then.

Apply for CUSAT CAT 2023 after checking eligibility and once the exam is cleared successfully there will be counselling after selecting web options, submit the documents and join the selected or assigned institute/college.

It may differ because it depends on college norms, but it will range between 20,00 to 30,000 per year.

By rank, the cutoff should be around 30-50, for taking admission i M. Sc. Microbiology.

There's a post graduation which is M.Sc. In Hotel Management
Which is done privately or by government colleges like IHM. The fees for M.Sc. In hotel management will be approximately 2 lacs. The time period for M.Sc. Is 2 years (4 semesters). .

The candidates with qualified FMGE examination are eligible for applying to the MS course at Heritage Institute of Medical Sciences.