Dear Sir / Ma'm, for admission to any medical college all over India, you need to clear the NEET UG with a qualifying percentile which is 50th percentile (118-691) for general and 40th percentile (96-118) for reserved category candidates. However, mere qualifying doesn't guarantee you a seat. Students are advised to keep a score of 470 and above to be on the safer side and to be able to grab a seat. However, the cut-off for various states differ though minutely.

First of all it is NEET not NIIT. NIIT is a company. Secondly you are required to get atleast above 600 marks to get MBBS as your preferred course