Kashyap and Srikanth went down fighting in the opening round.
London Games bronze medallist, Saina couldn't match Japan's world no. 20 Aya Ohori losing 21-16 21-14 in the opening round.
Indian women produced a clinical display to notch up a 3-2 win over Spain in the Uber Cup.
Saina, who failed to qualify for the Tokyo Games after a series of qualifiers were cancelled, has not been too active on social media.
In a tweet on Saturday night, Saina said, "Hearty congratulations for thumping victory in Zila Panchayat Chairperson election in UP @myogiadityanath sir."
Four Indians – P V Sindhu, Sai Praneeth, Satwiksairaj Rankireddy, and Chirag Shetty -- have qualified for the July-August Olympics in Tokyo.
The Singapore Open, a Super 500 event on the BWF World Tour, was the last tournament offering Race To Tokyo ranking points inside the Olympic qualifying window.
Saina and Srikanth's qualification for the Tokyo Games hinged on the Kuala Lumpur event followed by the Singapore Open (June 1-6).
The Malaysian Open, which runs from May 25-30, is one of the final two events where Olympic hopefuls can collect points towards the Race to Tokyo rankings.
Sundar thanked the badminton star for her 'kind words''.