As you are from reserved category then you must score 250 to 280 and rank must be 3000 below. On an average, to get into top NITs under AIQ such as NIT Trichy, Calicut, Rourkela, Jaipur, Nagpur etc. you need to secure a rank within 3000, for which you need to score at least 98 percentile in Jee Paper 2. You can check previous years' Cutoff (both AIQ and HSQ) from the link below-

https://engineering.careers360.com/articles/jee-main-cutoff-for-b-arch-b-planning