Khazanah Nasional Berhad, the sovereign wealth fund of Malaysia, is in discussions to lead a $400 million funding round in Oyo Hotels & Homes Pvt., the Indian hotel-booking company backed by Softbank Group Corp. Oyo, founded by Ritesh Agarwal, filed for an IPO for the second time in March, but has not yet decided on the timing. The company is seeking funds for expansion and debt reduction.