Architecture

Step 1: Apply through JEE Mains website for B.Tech Arch before December 31.
step 2: Study and prepare well. NIT, Trichy is ranked number 1 and its very very tough to get admission into it.
Step 3 : You don't need to apply separately to get into NITT. That is the short form of NIT, Trichy.
step 4 : If you are a candidate from Tamil Nadu you are called home state. If you are a candidate from other state you are called other state. Other state candidate should have better ranks to get into NIT. For example if a home state boy gets admission with 3000 rank you need 1500 or so.
Step 4: Caste of a candidate plays a crucial role. If you are from general category then you should be in creamy layer.
Step 5 : Even if you get a good ranking still you ain't sure of your admission. Choice filling and preferential selection of colleges during counseling is very very vital. Its a game and you should play that wisely; there is no room for error. I would say take some experts help once counseling process started. Everything you have to do online.
Take my words because in 2017 June I admitted my son in this very very prestigious institution.
In case any further advise required do write to me.