The story
The company's predecessor was the Bombay Electricity Board which was formed on 6 November 1954 and operated up to 31 March 1957 when it was renamed to Maharashtra State Electricity Board which operated until 19 June 1960.
The result of a collaboration between the MSEB and Enron was the Ratnagiri power plant.
Restructuring
In accordance with Electricity Act 2003 of the Government of India, the Maharashtra State Electricity Board was restructured into 4 companies in 2005. These companies were registered with Company Registrar in Mumbai on 31 May 2005 as follows:
MSEB Holding Company Limited.
Maharashtra State Power Generation Company Limited, Mahanirmiti or Mahagenco, MSPGCL.
Maharashtra State Electricity Transmission Company Limited, Mahapareshan or Mahatransco, MSETCL.
Maharashtra State Electricity Distribution Company Limited, Mahavitaran or Mahadiscom, MSEDCL.
Mahavitaran−MSEDCL is responsible for distribution of electricity throughout the state by buying power from either Mahanirmiti−MSPGCL power plants, or from other state electricity boards and private sector power generation companies.
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The holding company entity, MSEB Holding Company Limited, holds all the stake in the other three companies. All these 3 companies are engineers dominated.
From Wikipedia’s article on Maharashtra State Electricity Board, shared under CC BY-SA 4.0.3