Hello,

You haven't mentioned your CRL and category rank secured in JEE Main. Seat allotment in a college depends on CRL and/or Category rank. It will be helpful for us to know your CRL and Category rank so that we provide you the list of colleges in which you may have chances of getting seat by taking the previous year cut off in to consideration.

NTA score is same as percentile score. As your NTA score is 57 your percentile score is 57. Percentile is the percentage of candidates who have scored equal or less marks than you.