Hi, there are many good institutes in India. If you qualify exam with a good score, you will be getting a seat in good college. Some good Institutes / Universities are: Sir J.J.College Of Architecture Mumbai 

Centre For Environmental Planning & Technology Ahmedabad 

Lovely Professional University 

Jadavpur University Kolkata 

School Of Planning & Architecture New Delhi 

NIMS University Jaipur 

IIT Roorkee

Hey.

Here is a list of various top government colleges for the course of Architecture.

IIT Kharagpur

IIT Roorkee

SPA Delhi

SPA Bhopal

Jamia Milia University, Delhi

JADAVPUR university, Kolkata

JJ School of Architecture and Planning Mumbai.

Chandigarh College of Architecture, Chandigarh.