dear studewnt

There are more than 18 polytechnic colleges in the Mumbai.Most of the polytechnic colleges in the Mumbai are affiliated to the Maharashtra State Board of Technical Education (MSBTE), recognized by Government of Maharashtra and approved by the All India Council for Technical Education (AICTE), New Delhi.

List of diploma colleges in  mumbai are as follows

Government Polytechnic Mumbai

Kala-Vidya Sankul Polytechnic

Thakur Polytechnic

Bharati Vidyapeeth Institute of Technology (Polytechnic), Navi Mumbai

Agnel Polytechnic, Vashi

Padmashree. Dr.D.Y. Patil Polytechnic Institute

Sophia Polytechnic

L&T Institute of Technology

Shah and Anchor Kutchhi Polytechnic

S.H. Jondhale Polytechnic

Vivekanand Education Society's Polytechnic

Pravin Patil College of Diploma Engineering & Technology

hope this helps

All the best!!!