Hey !
Here are some of the Polytechnic colleges in Maharashtra:
1) Dr Babasaheb Ambedkar Technological University
2) Angel Polytechnic
3) Govt. Polytechnic Bombay
4) Faculty of Engineering & Technology, Shivaji University
5) Abhinav College of Hi-Tech Engineering
6) Dr N.P. Hirani Institute of Polytechnic
7) Hindustan Institute of Technology
8) Walchand College
9) Government Polytechnic
10) Atharva Institute of Information Technology
Check this link for more information about polytechnic colleges in Maharashtra.
https://engineering.careers360.com/colleges/list-of-diploma-in-engineering-colleges-in-maharashtra
Hope this helps
All the best !

Hi mayur,
    Some of the polytechnic colleges in Maharashtra are:
* A.G.patil polytechnic institute, solapur
*Adarsh polytechnic ,beed
*Adarsh polytechnic ,dhule
*Aditya polytechnic,beed
*Agnel polytechnic,Raigad
*Apurva polytechnic,Parbhani
Hope this helps!