India endured a disappointing day at the Japan Open Super 750 as Ayush Shetty, Unnati Hooda and Lakshya Sen all suffered first-round exits. Ayush came closest to an upset, pushing second seed Kunlavut Vitidsarn to three games. India's campaign now rests on PV Sindhu and mixed doubles pair Dhruv Kapila and Tanisha Crasto, who play their second-round matches on Thursday.