This year for NEET PG about 1,74,000 candidates have applied. March 30 was the last day for applying. These data was mentioned by the National Board of Examinations (NBE) 

NEET PG is held for admission to Master of Surgery (MS) and Doctor of Medicine (DM) courses offered in government, private, deemed and central universities. Students can contact NBE at 011-45593000 or write at its communication web portal- natboard.edu.in.

The NBE is to conduct the NEET-PG 2021 on 18th April, for that the last day to submit the application was 15th March. But there were about 1063 pending payments for the exam fees. 

The NBE decided to extend the dates till 30th March 2021. So all the 1063 applicants could pay the required amount of fee for their examination. But no other new application was accepted at that time frame.