New Delhi, Oct 22 : Oil and Natural Gas Corporation (ONGC) has won a bid to acquire PTC India Ltd's wind power unit for Rs 925 crore to expand its renewable energy business, the government-owned upstream oil company said.

"With a vision to expand its business in renewable energy, the company had participated in the bidding process for acquisition of 100 per cent equity stake of PTC Energy Limited (PEL), a wholly-owned subsidiary of PTC India Limited (PTC)," it said in a filing with the stock exchanges..  The PTC board last week approved the ONGC's bid for the acquisition of a 100 per cent equity stake in PEL at an equity value of Rs 925 crore, the company said in the filing.