Hi Aspirant,

Hope you are doing great as per the question asked by you, you can apply to N.I.TS through J.E.E mains marks but with J.E.E advance you can apply to I.I.Ts. You need to score very high in J.E.E mains then only you can secure a seat in any N.I.Ts and you also qualify for J.E.E advance.

Hope you found this answer useful.Stay motivated stay positive.

All the best!