India suffered a disappointing start at the China Masters as Devika Sihag and HS Prannoy exited in the opening round. Devika fought hard before losing a three-game battle to Thailand's Busanan Ongbamrungphan, while Prannoy went down in straight games to Malaysia's Leong Jun Hao. PV Sindhu, Lakshya Sen and Ayush Shetty begin their campaigns on Wednesday.