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Treesa and Gayatri suffered their third loss to Hsieh and Hung this year.
Sridhar who has been brought on board for the remainder of the season after Indonesian Agus Dwi Santoso's contract ended post-Paris Olympics.
The 41-year-old also secured a silver medal in the Tokyo Paralympics.
It was a disappointing day for Manasi Joshi and Manoj Sarkar, as they both suffered their second consecutive defeats, ending their chances of reaching the semifinals.
Yathiraj, who is an IAS officer of the 2007 batch of Uttar Pradesh cadre started the day with a defeat in the Mixed Doubles SL3-SU 5 partnering Palak Kohli.
The 32-year-old Keralite had been laid low by a bout of the mosquito-borne viral disease ahead of the recent Paris Olympics.
The 13-year-old Patri, seeded No. 1, wrapped up the proceedings in just 34 minutes as she scored a victory over her second-seeded opponent in the summit clash.
Lakshya Sen signed off as India's first male shuttler to reach the Olympic semifinals.
Indonesia's Gregoria Tunjung took bronze in women's singles by default as her would-be opponent, Spain's Carolina Marin, was forced to retire midway through her women's singles semifinal against China's He on Sunday.
Lakshya, who was attempting to become the first India male shuttler to win an Olympic medal, won the opening game 21-13. But the world No. 7 Lee bounced back to win the next two.