Hii aspirant..

In order to get admission in M.Arch you need to appear in the entrance exams based on which the foreign universities take admission- GRE and one English Proficiency test among IELTS and TOEFL. Apart from this you need a creative portfolio of your work to make your position 

Some of the best colleges for M.Arch are  -

• MIT
•   UCL
• Delft University of Technology.
• ETH Zürich.
• UC Berkeley.
• Harvard.
• Manchester School of Architecture.
• University of Cambridge.
• Politecnico di Milano.
• National University of Singapore.

Hope this helps. 

Best of luck.