Can I become an architecture after completing 12th with commerce stream? I am from Gujarat board so don't have the option of choosing maths.

Unfortunately no, Council of Architecture guidelines state: Only candidates who have the following credentials shall be eligible for admission to B.Arch. Course. I. Qualified through the recognised aptitude test in Architecture NATA or equivalent) ii. Have gone through any of the following curricul

No, you can't do it without maths.