Indian shuttlers Ajay Jayaram and RMV Gurusaidutt entered the semi-finals of the Vietnam Open Grand Prix [ Images ], but it was curtains for their female counterparts at Ho Chih Minh city on Friday.

World Championships quarter-finalist Jayaram bounced back from a game down to see off fourth seed Alamsyah Yunus of Indonesia 15-21, 21-11, 21-15.

The fifth seed Indian takes on second seed Sho Sasaki of Japan [ Images ] on Saturday.

Gurusaidutt, seeded 12th, beat Beng Hong Kuan of Malaysia 21-14, 21-12, in just 26 minutes to set up a clash with top seed Tien Minh Nguyen of Vietnam.

However, things were gloomy in the women's singles competition, as Aditi Mutatkar [ Images ], PV Sindhu and Arundhati Pantawane crashed out. All the three went down adespite winning the first game.

After having her nose ahead, Mutatkar ran out of steam and suffered a 18-21, 21-14, 21-17 loss to Singaporean Mingtian Fu in an hour and four minute contest.

Sindhu too squandered a first game lead to succumb to a 21-11, 11-21, 19-21 defeat against third seed Tzu Ying Tai of Chinese Taipei.

Arundhati played her heart out but couldn't get past Kaori Imabeppu of Japan and lost 21-18, 13-21, 12-21 in an hour and three minutes match.

The other Indian pair in the fray, fourth seeds Arun Vishnu [ Images ] and Aparna Balan also lost 19-21,12-21 to Eui Seok Chung and Hyun Young Yoo of Korea.