Dear Aspirant, with this percentile CRL rank would be around 3lac( 306900 - 345000 ). According to previous year cutoffs closing ranks there aren't much chances for NIT Agartala (BS MS Dual Degree in Maths) with this rank.

JOSAA official closing ranks(2020) - https://josaa.nic.in/Result/Result/currentorcr.aspx

You can check other options using these -

JEE Mains Rank Predictor-

JEE Mains College Predictor-