Hello aspirant,

With a ranking between 2000-3000 in JEE Mains paper 2, you have a good chance for getting a seat in any NITs or CFTIs. I suggest you to carefully select your choice filling for the counselling process of JoSAA. 

Futher I suggest you to apply for any private B.arch institues too and apply for it if you have also appeared NATA.

Good luck.