Valuation of IPO-bound OYO fell to around $6.5 billion in the private market after its investor SoftBank cut the hospitality and travel-tech firm's valuation in its private books, PTI reported. Nearly 12.3 lakh shares of OYO were sold in the private market between September 26-30, against 1.6 lakh sold between September 19-23. Softbank had cut OYO's valuation by 20%.