Top Indian shuttlers Saina Nehwal and K Srikanth have entered the quarter-finals of the singles events in the Hong Kong Super Series badminton tournament. However, it was curtains for teen sensation P V Sindhu, who suffered a three-game loss to lesser-ranked Nozomi Okuhara of Japan in the second round. At Kowloon, Hong Kong, today, Srikanth, who had defeated two-time Olympic champion Lin Dan in China Open Super Series Premier men's singles final on Sunday, faced stiff resistance from his Thai rival Tanongsak Saensomboonsuk. Yet, the Indian won the second round contest in straight games 21-19, 23-21 in 39 minutes. On the other hand, Saina had an easy outing as she took just 31 minutes to outplay United States' Beiwen Zhang 21-16 21-13. The Indian now play sixth seed Tai Tzu Ying of ChineseTaipei in the quarterfinals.