Hey Chetan, hope you are doing well. According to previous year's trends and cutoffs, at this rank it is somewhat difficult to get into NITS or IITS as the closing rank is around 15k category rank. Nevertheless please wait for cutoffs to be out. You can try for private colleges which accept JEE MAINS score like Nirma University, Thapar University, PDPU, DAIICT, etc for backup. Hope it helps!! Good luck!!