Saina passed her first test on court, posting a straight-games victory over Kisona Selvaduray. Former World No 1 Srikanth was also in the zone, dismantling compatriot Sourabh Verma.
Sourabh failed to cross the opening hurdle, losing to Kidambi 21-12, 21-11 in two consecutive sets.
Ex-world no. 1 Srikanth left with bloodied nose, BWF says working with Thailand Open for 'comfortable' conditions
Srikanth is scheduled to open his campaign against compatriot Sourabh Verma on Wednesday.
The Badminton World Federation said Kidambi Srikanth is being attended to by a doctor and it is awaiting a medical explanation.
The shuttlers can now train but only during the time-slots allotted to each team.
It's likely that the team will be allowed to train even during quarantine before playing their first tournament. The next tournament - beginning on January 19 - is likely to be with fans.
Srikanth, seeded fifth, defeated Ho-Shue 21-15, 21-14 in just 33 minutes to make it to the last eight of the Super 750 tournament
The former world number one, who had claimed four superseries titles in 2017, beat Toby 21-12 21-18 in 37 minutes, as the sport finally got going after the long coronavirus-forced hiatus.
As per official prospectus of the tournament, all players and officials will be allowed entry into Denmark and there are no rules for quarantine on entry.
In March 2018, after his performance in international arena in 2017 where he won international tournaments, the then government appointed Srikanth as Deputy Collector.
Spending time with family after nearly a decade, Srikanth feels wait for vaccine will keep rekindling apprehensions
Pullela Gopichand said that Srikanth and Saina could have used a break between the end of 2018 and early 2019.
The Indian duo has been inconsistent in 2019 and didn't enjoy a good start to the new year.
Saina Nehwal will play either compatriot P V Sindhu or defending champion Michelle Li of Canada in the finals.
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.