Indian state-run utility NTPC Ltd (<a href="https://www.bseindia.com/stock-share-price/ntpc-ltd/ntpc/532555/" target="_blank">BOM:532555</a>) and domestic oil and gas company ONGC (<a href="https://www.bseindia.com/stock-share-price/oil-and-natural-gas-corporation-ltd/ongc/500312/" target="_blank">BOM:500312</a>) intend to set up a joint venture (JV) to invest in the renewable energy field.