- Tag results for HS Prannoy
Prannoy was beaten 21-16, 21-12 by NG Ka Long Angus from Hong Kong.
Sindhu was beaten by China's Gao Fangjie in the women's singles second round, her first preliminary exit in almost a year.
In men's singles, HS Prannoy defeated current Asian Games gold medallist Jonathan Christie 21-18 21-17.
Sameer failed to get across former two-time Olympic champion Lin Dan, losing 17-21 14-21 in a 45-minute match.
Last year, Prannoy had gone on a giant-killing spree at Indonesia Open, upsetting the legendary Malaysian Lee Chong Wei and Olympic champion Chen Long to reach the semifinals.
PV Sindhu made it to the Thailand Open final before losing to reigning World Champion Nozomi Okuhara, who climbed up two spots to 6th.
Olympic silver medallist Sindhu brushed aside Bulgaria's Linda Zetchiri, while Prannoy defeated Spain's Pablo Abian.
Prannoy lost the match 17-21, 18-21 in the quarter-finals to Shi Yuqi a match that lasted for just 39 minutes.
Prannoy dug deep into his reservoir to see off the iconic shuttler Lin Dan in the third game at the USD 1,250,000 event.
Saina Nehwal and HS Prannoy will be the only star attraction at the world team championships.
World No.1 Kidambi Srikanth stormed into the badminton men's singles semi-finals of the 21st Commonwealth Games.
Top seed Srikanth thrashed Sri Lankan Niluka Karunaratne 2-0 (21-10, 21-10) in just 33 minutes at the Carrara Sports Arena here.
World No 12 H S Prannoy, who has a qualifier in his campaign opener, is likely to face Lin Dan early in the second round.
HS Prannoy will start his tournament with a second-round clash with the winner of the match between Mauritius' Paul Christopher Jean and Seychellois Steve Malcouzane.
India has become a powerhouse in world badminton, with the likes of Kidambi Srikanth, PV Sindhu and Saina Nehwal winning laurels for the country.