Hi, with your percentile you are eligible for JEE-Advanced too! The last year's closing ranks for different NITs in Computer Science for are:

NIT Trichy       1140 other state, 4041 home state

NIT Calicut      4822 other state, 8439 home state

NIT Delhi        9647 OS, 18053 HS

NIT Raipur      12909 OS, 25196 HS

NIT Hamirpur  15821 OS, 49313 HS

NIT Sikkim      30322 OS, 770959 HS

More cut off ranks-> https://engineering.careers360.com/articles/jee-main-cutoff

Your mark in JEE Advanced can be determined only by your efforts and hardwork. So if you are not satisfied after JoSAA counselling, you can try for IITs based on your JEE-Advanced score.