In an ambitious move, the country's largest power producer NTPC is joining the fray for buying out the Delhi electricity distribution business of Anil Ambani-promoted Reliance Infrastructure (RInfra). In a letter to the Delhi Electricity Regulatory Commission (DERC), NTPC said it was keen to buy 51 per cent stake in BSES Rajdhani Power and BSES Yamuna Power — the two distribution companies (discoms) owned by RInfra. It said it was keen to foray into the distribution business, provided “the equity sale is done through a transparent process”.