Complex sentence: The firm started as the Tata Hydroelectric Power Supply Company in 1911, which amalgamated with the Andhra Valley Power Supply Company in 1916; it commissioned India's first large hydro-electric project in 1915 in Bhivpuri and Khopoli, Karjat.
Split into simpler sentences: The firm started as the Tata Hydroelectric Power Supply Company in 1911, which amalgamated with the Andhra Valley Power Supply Company in 1916. It commissioned India's first large hydro-electric project in 1915 in Bhivpuri and Khopoli, Karjat.