Indian shuttlers Kidambi Srikanth and HS Prannoy entered semi-final of men's singles in Indonesia Open Super-series Badminton tournament in Jakarta today. Srikanth defeated Tzu Wei Wang of Chinese Taipei 21-15, 21-14 in the quarter-final match that lasted 37 minutes. Prannoy overcame Chen Long of China 21-18, 16-21, 21-19 in the quarter-final encounter that lasted close to 75 minutes. Prannoy had upset top seed Lee Chong Wei of Malaysia to enter the quarters yesterday, while Kidambi Srikanth overcame Denmark's Jan Ol Jorgensen in another encounter to sail into the quarters. P.V.Sindhu and Saina Nehwal have already crashed out of the tournament after losing their respective women's singles encounters.