The unseeded Indo-Romanian pair beat British-Chinese pair 6-2 6-4 in the quarter-finals of the USD 220,000 hard court events.
They will next face Ukraine's Olga Savchuk and Tamarine Tanasugarn of Thailand.
Sania has already crashed out of the singles event after a quarter-finals defeat.
Published 18 September 2010, 15:12 IST