Hey Mamata,

B.Arch is a five years undergraduate course in the field of architecture.The course is divivded into ten semesters.The main aim fo this course is to enrich a candidate's knowledge in the field of architecture thus enabling him/her to become a qualified professional.

Kolkata has many good colleges for this particular course.They include:

• Techno India University
• Jadavpur University
• Om Dayal Group of Institution
• Amity University
• IIEST
• IIT Kharagpur 
• MAKAUT

Hope this helps!