Hey Kanishk, you may be able get a seat in architecture in following colleges

Marwadi Education Foundation Group Institute of Architecture

Vidyamandir College of Architecture

VJKM Institute of Architecture and Design

Institute of Architecture, Ganpat University

Sal School of Architecture, Ahmedabad

Kalol Institute of Architecture & Design, Kalol

Laxmi Institute of Architecture, Sarigam, Valsad

Raman Bhakta School of Architecture, Mahua, Surat

Bhagwan Mahavir College of Architecture

Shantaben Manubhai Patel School of Studies and Research in Architecture and Interior Design

Parul Institute of Architecture and Research

ITM School of Architecture Art and Design

D.C. Patel School of Architecture.

These are few good private colleges.But you can also able to get into government colleges (NIT's) too!

like 

Nit tiruchunapalli

Nit calicut

Bit Mesra

Nir Hamirpur