Sania Mirza [ Images ] and Sanaa Bhambri had mixed fortunes in the girls' mixed doubles at Wimbledon [ Images ] on Thursday.

While Mirza progressed to the second round, Bhambri fell at the first hurdle.

Sania, partnering Alisa Kleybanova of Russia [ Images ], scored an upset victory over top seeds Slovakian Jarmila Gajdosova and Andrea Hlavackova of the Czech Republic, winning 7-6 (9/7), 6-4 while Bhambri and Lara Giltinan of Australia [ Images ] lost to Casey Dellacqua [ Images ] and Adriana Szili 1-6, 4-6.

Kleybanova and Mirza will now face Emma Laine of Finland and Nadja Pavic of Crotia in the quarter-finals.

Anand and Vijay Amritraj also tasted defeat. They lost 3-6, 2-6 to third seeds Peter McNamara and Paul McNamee of Australia in the over-45 men's doubles.

In the boys' doubles, Somdev Dev Varman and Karan Rastogi [ Images ] of India [ Images ] lost to Andrew Murray and Tom Rushby of Great Britain 0-6, 5-7.