Hiii..

As you ask about best college for M.Tech colleges.. but you didn't mention the name of the state or city about which you talk here.. so here I am assuming that you are talking about India ...so there are some colleges all over the India which are best for  Mtech

• Dayananda Sagar College of Engineering ,Bangalore
• Indians institutes of Technology Mumbai
• College of Engineering Pune
• Lovely Professional University Phagwara
• RV College of Engineering Bangalore
• PSG college of technology Coimbatore
• Manipal Institute of Technology Manipal

for more information click here:

https://engineering.careers360.com/colleges/list-of-me-mtech-colleges-in-india

All the best!!