SUCCESSFUL DAY: K. Srikanth progressed to the pre-quarterfinals in both the singles and doubles events.

P.V. Sindhu and Gauri Ghate registered contrasting wins to enter the girls' singles pre-quarterfinals of the Badminton Asia youth under-19 championships at the U.P. Badminton Academy, Gomti Nagar, here on Wednesday.

Sindhu, seeded fourth, got past Thai opponent Maetanee Phattanaphitoon 21-14, 21-15 without much trouble while eighth-seeded Gauri rallied to beat Ying Yeun Sin of Hong Kong 13-21, 21-17, 21-9.

On a day of upsets, the top three seeds crashed out of the girls' singles event.

In boys' singles, K. Srikanth, Sameer Verma and Pratul Joshi also made the pre-quarterfinals. The duo of T.H. Babu and K. Srikanth showed good coordination to thrash their Bangladesh rivals and make the round of 16.

The results: Boys' singles: First round: Sung Han Chung (Tpe) bt Azriyn Ayub Nur Mohammad (Mas) 21-14, 16-21, 21-8; Hiren R. Shesar (Ina) bt Irfan Ansari (Nep) 21-6, 21-7; Gifar R. Arief (Ina) bt Ching Chang Tak (Hkg) 21-16, 21-12.

Second round: Hei Tam Chun (Hkg) bt Akira Koga (Jpn) 21-17, 21-19; Zulfadli Zulkiffli (Mas) bt Tan L. Khanh (Vie) 21-18, 21-18; Kento Momota (Jpn) bt Khosit Petpradab (Tha) 21-18, 21-19; Hiren R. Shesar (Ina) bt Wei Wang Tzu (Tpe) 19-21, 21-10, 21-5.

Indian results: First round: Subhankar Dey bt Artur Niyazov (Kaz) 21-16, 21-11; K. Srikanth bt Hsiung Huang Kun (Tpe) 21-15, 21-13; Sameer Verma bt Mohd. Arif Hossain (Ban) 21-14, 21-4, Rohit Yadav bt Pao Fa Wang (Tpe) 21-15, 21-17; N.V.S. Vijetha bt Mohd. Rezaul Karim (Ban) 21-14, 21-19; Pratul Joshi bt Ahmad Aljallad (Syr) 21-5, 21-12.

Second round: K. Srikanth bt Aram Mahmoud 21-16, 21-11; Kai Lu (Chn) bt Subhankar Dey 21-10, 21-16, Sameer Verma bt Duc Do Tuan (Vie) 21-8, 21-10; Yuxiang Huang (Chn) bt Rohit Yadav 21-18, 21-18; Pratul Joshi bt Joper E. Philip (Phi) 21-11, 21-15.

Boys' doubles: Second round: Apri N. Lukhi & Rizky Susanto (Ina) bt Chamika Karunarathna & B.Y. Damitha (Sri) 21-10, 21-11; Parveen Jor & Y.R. Rangga (Ina) bt Alton C.M. Kai & Asraf Bin Ishak Muhammad (Sin) 21-8, 21-17; Yao Lu Ching & En Huang Chu (Tpe) bt Reginald Lee Chun Hei & Angus Ng Ka Long (Hkg) 21-16, 16-21, 21-19; Kang Tai An & Enos Jani Sant (Mas) bt Farzin Khanjani & Sadredin Sadeghi (Iri) 21-19, 21-16; Ee Yi Teo & N.W.K. Heg (Mas) bt Dai Watanabe & Kento Momota (Jpn) 21-16, 21-10; Tiyani Pei & Zhoufu Chen (Chn) bt Tinn Isriyanet & Wannawat Ampunsuwan (Tha) 21-14, 21-9. Indian results: First round: Kritti Cholprasertsuk & Samatcha Tovannaksem (Tha) bt K.P. Chaitanya & K. Chaitanya Reddy 21-7, 21-11; Second round: T.H. Babu & K. Srikanth bt Rezaul Karim & Arif Hossain Mohammad (Ban) 21-6, 21-14.

Girls' singles: Second round: Huyen Le Thu (Vie) bt Momoka Kimura (Jpn) 23-21, 22-20; Ayako Sakuramoto (Jpn) bt Achini Rathnasiri (Sri) 14-21, 21-10, 21-12; Yaying Shen (Chn) bt Nozomi Okuhara (Jpn) 21-17, 21-17; Yu Sun (Chn) bt Venice A.M. Ann (Phi) 27-25, 21-7; Xiaoyu Liang (Sin) bt Rawinda Prajongjai (Tha) 13-21, 21-19, 21-11; Elysabeth Purwaningtyas (Ina) bt Yi Cheung Ngan (Hkg) 21-15, 16-21, 21-8.

Indian results: First round: Yu Sun (Chn) bt Rituparna Das 21-13, 21-10; Salili Rane bt Mei Cheung Ying (Hkg) 21-14, 21-16; Xiaoyu Liang (Sin) bt Tanvi Lad 21-19, 21-15; Daya Elsa Jacob bt Tagred Aljalad (Jor) 21-9, 21-7.

Second round: Gauri Ghate bt Ying Yeun Sin (Hkg) 13-21, 21-17, 21-9; P.V. Sindhu bt M. Phattanaphitoon (Tha) 21-14, 21-15; Pramodika H. Thilini (Sri) bt Daya Elsa Jacob 21-19, 21-18;

Girls' doubles: Second round: Dongni Ou & Rui Xiong (Chn) bt Ying Yeun Sin & Mei Cheung Ying (Hkg) 21-9, 21-7; Ayako Sakuramoto & Ayano Torii (Jpn) bt Daeva O. Melati & Ririn Amelia (Ina) 18-21, 21-13, 21-16; E. Gloria Widjaya & K. Rosmini (Ina) bt Huyen Le Thu & Thao Pham (Vie) 21-11, 21-13.

Indian results: Second round: Lian Yang Lee & Sonia Cheah (Mas) bt K. Anoosha & Sneha Santhilal 21-13, 21-15; Achini Rathnasiri & Samanthika W. Upuli (Sri) bt Daya Elsa Jacob & Gauri Ghate 21-7, 21-16; Chonthicha Kititharakul & P. Arkonsakul (Tha) bt S.R. Poorvisha & G. Ruthvika Shivani 21-18, 21-18; Kuan Chow Mei & Yean Lee Meng (Mas) bt Arathi Sara Sunil & Salili Rane 21-7, 21-12.

Mixed doubles:

Indian results: First round: K. Sriteja & D. Sudha Kalyani bt Ratnajit Tamang & Poonam Gurung (Nep) 21-13, 21-18; Kang Tai An & Jemie Lai Shevon (Mas) bt T.H. Babu & J. Meghana 21-6, 21-8; Lukai Zhuge & Yaqiong Huang (Chn) bt A. Naresh & S.R. Poorvisha 21-12, 21-12; K. Srikanth & K. Maneesha bt En Huang Chu & Ying Wu Wen (Tpe) 21-12, 21-17.