Maharashtra State Electricity Board (or MSEB) ( Marathi:महाराष्ट्र राज्य विद्युत मंडळ) is a state government electricity regulation board operating within the state of Maharashtra in India. The MSEB was formed on 20 June 1960 under Section 5 of the Electricity (Supply) Act, 1948. In 1998 it was the second largest electricity generating utility in India after National Thermal Power Corporation.