M.Sc Physics

University of Delhi is a good option for PG. Check the website to see whether the course is offered and the Application date etc. Website:- du.ac.in

Admission is through counselling based on the score obtained in Common Entrance Test (CUCET). Eligible candidates need to appear for Central Universities Common Entrance Test (CUCET). Please refer to the link provided below for eligibility and other details to pursue this course from Central University of Rajasthan.
https://www.shiksha.com/teaching-education/course/integrated-m-sc-b-ed-in-physics-central-univeristy-of-rajasthan-ajmer-268877

Good question Arnav, see there is no straight answer to this. Every individual has his strong and weak points you have to be distinct on your own. Since MIT is the other name of innovation that is one area you should focus on. Outstanding project is a must. Physics has wide scope for this. Write in journals, get hold of top notch professors and work with them. Broaden your perspective, see how you can apply physics and where. Apart from academic does a good amount of community work and engage in your hobbies. Applying to MIT does not mean you should keep studying 24 hours. Be an all-rounder.

The Post Graduate Entrance Tests (Gets) shall have 70 Objective-Type Multiple Choice Questions / Multiple Choice Questions of Objective Type carrying One (01) Mark each for each Subject / programme:
60 Multiple Choice Questions of the concerned Subject / programme Subject / programme within the Notified Syllabus is available on the Website of Rajasthan University for all Under Graduate Subjects / Programs) and 10 Multiple Choice Questions on General Awareness (including General Knowledge, Mental Ability & Basic English). The Duration for each Paper shall be 75 Minutes.

Apply for Entrance Examination of M.Sc Universities, and then attend their counselling and get admission.

Admissions open in May-August.