As per your concern I will let you know about All India Institute of Medical Sciences Post Graduate Entrance Examination (AIIMS PG), so that you can get idea.

Eligibility
Candidates must have an MBBS degree for MD/MS and BDS degree for MDS from a recognized institution recognized by Medical Council of India/Dental Council of India

Candidates must have completed the 12 months of rotating internship

Candidate belonging to general category must have secured a minimum of 55% aggregate in MBBS, while it is 50% for candidates belonging to SC/ST categories

Exam pattern
Exam Time
Morning Session – 09:00 AM to 12:30 PM
Evening Session – 03:00 PM to 06:30 PM

Exam Mode
Computer Based Test i.e. Online mode

Allocation of exam shift
Random

Language of Paper
Bilingual - English or Hindi

Types of questions
Multiple choice and reason-assertion based

Number of Questions
200

Distribution of Questions
Physics – 60

Chemistry – 60

Biology (Zoology & Botany) – 60

General Knowledge - 20
Total – 200 Questions

Marking Scheme
For correct answer: +1 marks are given

For incorrect answer: 1/3 (One third) mark is deducted

Application fee
Candidates of general category have to pay Rs. 1000 (plus applicable transaction charges) as an application fee.

Those belong to SC/ST category, they have to submit Rs. 800/- (plus applicable transaction charges).

OPH Candidates is exempted from payment of any Fee. Candidates can pay the fee from online mode (credit card/debit card/net banking).