Dear Souvik, NEET is the entrance examination for admission to MBBS course. Now for becoming a surgeon you to need to crack NEET PG. NEET UG and AIIMS MBBS are entrance examinations for MBBS and other undergraduate medical courses. So once you complete MBBS along with 1 year mandatory internship, if you want to study in India, NEET PG or AIIMS PG is mandatory. But in the nest 3 years, NEET PG will be replaced. So we need to wait for the official exam information.