Hello,

Following is the list of top colleges for architecture in India -

• Sir JJ college of architecture ( MUMBAI)
• School of planning and architecture (NEW DELHI)
• IIT (KHARAGPUR / ROORKEE)
• CEPT ( AHEMDABAD) 
• Birla institute of technology (RANCHI)
• Chandigarh college of architecture
• SCET (SURAT)

Most of them consider the addmission by NATIONAL APTITUDE TEST FOR ARCHITECTURE (NATA) and JEE PAPER 2 FOR B.ARCH , for IITs you need to clear both mains and advance levels of JEE. Some colleges also conduct separate examination. 

Hope this information was useful. All the best.