Reliance Retail, the retail arm of billionaire Mukesh Ambani-led Reliance Industries Limited, acquired a stake of 40.95 per cent for Rs 3,497 crore in leading internet technology B2B company Just Dial. As per the definitive agreements on July 16, the retail company will make an open offer to acquire up to 26 per cent in accordance with takeover regulations set by market regulator SEBI.