Saina Nehwal started her title defence with a thrashing straight-game victory over local girl Tsz Ka Chan to advance to the second round of the Hong Kong Super Series on Wednesday.
World number four Saina took just 28 minutes to send Chan packing 21-4, 21-17 in the women's singles competition at the Hong Kong Coliseum.
Ajay Jayaram, who reached the top 16 in the World Championships and has given some brilliant performances in the last six months, stunned world number six Sho Sasaki in the opening round of the men's singles event.
The World number 34 beat the sixth seed Japanese 14-21, 21-18, 21-14 in a match that lasted 49 minutes to set up a clash with Jie Yao of Holland in the second round.
Arvind Bhat and RMV Gurusaidutt also notched up wins to reach the second round. While Arvind beat Tien Chen Chou 21-18, 21-15, Gurusaidutt defeated French Brice Leverdez 21-11, 21-16 in another match.
Up against four-time World Champion Lin Dan, India's P Kashyap put his heart out and led 1-0 before going down 21-16, 17-21, 14-21 in one hour and seven minutes.
Rupesh Kumar and Sanave Thomas also reached the next round after beating the English pair of Chris Adcock and Andrew Ellis 21-16, 21-17 in the men's double competition.
Jwala Gutta and V Diju also made it to the second round of the mixed doubles event with a tough 21-15, 26-24 victory over the local pair of Wai Hong Wong and Hoi Wah Chau.
However, India's ace women's doubles pair of Jwala and Ashwini Ponnappa crashed out of the tournament, losing 15-21, 14-21 to eighth seeds Christinna Pedersen and Kamilla Rytter Juhl of England.