Hi aspirant

You need less than 8k rank to get NIT tirchy .The cut off of the streams is too high as you must be knowing NIT Tirchy is one of the top NITs .

You can try for other NITs like:

NIT Raipur : Mechanical,Metallurgy,Mining,Chemical ,biotechnology,biomedical

NIT Rourkela: Ceramic Engineering,Mining Engineering,Industrial design,Biomedical engineering,

Nit jamshedpur:Civil Engineering,Metallurgy and material engineering,Production and industrial engineering

There are other NITs as well you can check their cut off here: https://engineering.careers360.com/articles/jee-main-cutoff

82.9%ile in jee paper 2 is too low to get you seats.IT would be better if you look college on the basis of JEE paper 1.

All the best.