Hello Tarun.

See right now it is difficult to tell u about whether u will get any good colleges like NITs or not as u have provided with ur percentile score which is among ur session only and that too in ur shift only.

U can calculate ur marks by using simple formula.

Marks : (100- your percentile score)*764489/100

Since u belong to pwd category and ur marsks are also average so u r having a chance of getting college for ur btech career.

Hope u got ur point. Ask if any query.

Good luck