Two-time Olympic medallist PV Sindhu was knocked out of India Open but Kidambi Srikanth and HS Prannoy progressed to the second round at the USD 950,000 Super 750 badminton tournament, here on Wednesday.

Sindhu went down 22-20, 12-21, 15-21 to Vietnam’s Thuy Linh Nguyen. Earlier, former World No. 1 Srikanth had to dig deep to outlast fellow Indian Tharun Mannepalli 15-21, 21-6, 21-19. Prannoy outwitted last year’s runner-up Lee Cheuk Yiu 22-20 21-18 to enter the second round.