Hey.

A few Colleges under MHCET providing diploma and Pg courses in Labour law are-

Indian Law Society Law College, Pune

 Yashwantrao Chavan Law College, Pune

Manikchand Pahade Law College, Aurangabad

Dr Ambedkar College of Law, Mumbai

 Marathwada Mitra Mandal's Shankarrao Chavan Law College, Pune

Shantaram Potdukhe College of Law, Chandrapur

Ahmednagar Jilha Maratha Vidya Prasarak Samajs New Law College, Ahmednagar

Other colleges in Maharashtra providing diploma/PG courses in Labour law are-

Bharati Vidyapeeth Deemed University, New Law College, Pune

Savitribai Phule Pune University, Pune

Symbiosis Law School Pune

Best of luck