Hi aspirant,

The JEE Main result is announced by NTA in terms of percentile and then two types of ranks are calculated based on percentile -- Common Rank list (CRL) rank and Category rank. CRL rank is allocated to everyone whereas category rank is allocated to those who belong to the reserved categories like EWS/OBC/SC/ST/PwD. CRL rank is same as the open category rank.  Allocation of seats during counselling is done based on these ranks, whichever applicable.

Hope it helps you.