how can i get b arch in IIT ??

For admisstion in b.arch in iit .....you must pass AAT(architech aptitute test) ..

And only 2 iits offered b.arch programme
iit kharagpur
iit roorkee

So AAT is only for 2 iits

AAT registration date 11and 12 may

But apear in AAT YOU have must clear jee main paper1

On the based jee main paper 2 you can't admisstion in b.arch in iit.....on the base jee main p2 you can only admisstion in nits, such cfits and gfits....

All the best......