US firm KKR picks up 1.28% stake in Reliance Retail for Rs 5,550 crore

US private equity firm KKR & Co will invest Rs 5,550 crore to buy a 1.28 per cent stake in Reliance Industries Ltd's retail arm as the Mukesh Ambani-run conglomerate extends fundraising spree that has already netted more than USD 20 billion.