Singapore-based technology company, GrabTaxi Holdings Pte. Ltd. that offers ride-hailing, food delivery service through its app is in advanced discussions to invest $100 million (Rs 697.7 crore) in Indian hospitality chain OYO Hotels & Homes. The proposed investment is expected to be made through A1 Holdings Inc., an entity controlled by Grab, is a part of the OYO’s ongoing $1billion…