Arshiya, NBE has clearly mentioned that only those students who will complete their mandatory 1 year internship by March 30th will be eligible for NEET PG exam. Even if you appeared for the exam and you qualify, but you do not complete your internship by March 30th, you will not be eligible for Counselling. Temporary registration certificate is something that you get from the College or University before MCI gives you the Registration certificate.