Mechanical Engineering in Mumbai

Hello Janardhan,
Based on your JEE Mains marks, your chances are nil for getting any good colleges, however, you may get some via MHCET, so check here for more insights.
https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://www.shiksha.com/b-tech/resources/mhcet-college-predictor&ved=0ahUKEwiOhvi6nPPTAhWDsI8KHSV_AdEQFggqMAA&usg=AFQjCNE0yQCarH8fgLECdumzy3J65y6ptw&sig2=RWt1zjYkvJ_ieCep5mjDSg

IIT Bombay in undoubtedly the best mechanical engineering college in Mumbai.

Alliance College of Engineering and Design, Alliance University
JaganNath Gupta Institute of Engineering and Technology (JNIT)
PSIT (Pranveer Singh Institute of Technology)
G L Bajaj Institute of Technology & Management
Bharati Vidyapeeth College of Engineering, Navi Mumbai
SIES Graduate School of Technology

IIT BOMBAY
college of engineering pune
veer mata jijabai technological institute Mumbai
army institute of technology pune
vishwakarma institute of technology pune
sardar Patel college of engineering
BHARAT VIDYAPEETH COLLEGE OF ENGINEERING MUMBAI

I IT BOMBAY
BHARAT I VIDYAPEETH COLLEGE OF ENGINEERING
GOVT. COLLEGE OF ENGINEERING
VEER MATA JIJABAI TECHNOLOGICAL INSTITUTE
AND MANY MORE. .

For more detailed list of mechanical engineering colleges you can visit below link:
https://engineering.shiksha.com/be-btech-in-mechanical-engineering-courses-in-mumbai-all-ctpg
Hope it helps.