Hello student,

Best college for mechanical engineering in india are as follows:

• Motilal Nehru National Institute of Technology, Allahabad.
• PEC University of Technology, Chandigarh.
• Thapar University, Punjab.
• P.E.S. College of Engineering, Karnataka.
• SASTRA University, Tamilnadu.
• Sardar Patel College of Engineering, Mumbai.
• SRM University, Delhi.

Hope it helps. 

Thank you  :)