hello prabhat

GMCH Chandigarh is a reputed college and usually has a very high cut off.

If you are applying through 15% All India Quota then you probably have to score quite beyond 600 to ensure yourself a seat, say around 640 to 650. (Within1000AIR)

However, if you have state quota then a score beyond 530 may ensure you a seat.

These statistics are keeping with last years trend but how far they apply to this year I cannot be sure because if you compare 2016 and 2017 NEET cut offs and ranks there is vast difference between the two

hope this helps