London Olympics bronze-medallist, Saina outclassed Malaysia's Jin Wei Goh 21-12 21-14 in a 37-minute clash to set up a quarterfinal battle with 2013 world champion and second seed Ratchanok Intanon of Thailand.
In men's singles, Srikanth, who had taken a break for a month to train after a hectic April, defeated Indonesia's Sony Dwi Kuncoro 21-19 21-12 in 34 minutes. The World No. 13 will next face Korean qualifier Kwang Hee Heo tomorrow.
Runners-up at National Championships, Tanvi Lad went down 18-21 6-21 to fourth seed Chinese Wang Yihan, while national champion Sameer played his heart out before going down 21-11 7-21 19-21 to Anthony Sinisuka Ginting of Indonesia.
Saina was lagging initially when Jin took a 4-1 lead and held on to it till 9-7. The Indian then reeled off six points to reach 13-9 and then just zoomed ahead to pocket the first game.
In the second game, Saina led 5-2 early on but Jin tried to grab the lead and put up a tough fight before the Indian broke off 9-9 to gradually march ahead. In the end, she comfortably closed the issue.
Srikanth, who had faced a series of first-round losses in the last few tournaments since wining the Syed Modi Grand Prix Gold in January, fought back from 4-6 and 13-15 to grab the opening game against Sony.
In the second game, Srikanth was more clinical as he surged ahead after 3-3 and never looked back.
