The unseeded Indo-German pair, which had shocked top seeds, lost 4-6 6-7(1) to the Filipino-Briton combo in the second round of the USD 1,295,790 hard court tournament.
Indian doubles tennis players advanced to the quarterfinals of the Shanghai Masters here on Thursday.
Sam Querrey of the United States won the Farmers Classic for the third time in four years, downing Lithuania's Ricardas Berankis 6-0, 6-2 on Sunday at the Los Angeles Tennis Center.
Two-time champion Sam Querrey won his opening match in the Farmers Classic, beating Igor Sijsling of the Netherlands 6-2, 6-2 on Wednesday at the Los Angeles Tennis Center.
Continuing their good run, Somdev Devvarman and Treat Conrad Huey moved to the semifinals of the ATP Farmers Classic with a comfortable straight sets win over Gilles Muller of Luxembourg and Briton Jamie Murray.
India's Somdev Devvarman and Treat Conrad Huey of Philippines took out the top seeded Brazilian pair Marcelo Melo and Bruno Soares 6-3, 6-4 to enter the men's doubles quarter-finals of the $619,500 Farmers Classic tennis tournament.
Juan Martin del Potro battled back in the second set to beat James Blake 6-4, 7-6 (3) on Wednesday to reach the quarter-finals of the Farmers Classic.
Seventh-seeded Bulgarian Grigor Dimitrov and US teenager Ryan Harrison led the youth movement in evidence on Tuesday at the ATP Los Angeles hardcourt tournament
Michael Russell provided an upset on the opening day of the Farmers Classic, ousting sixth-seeded Dimitry Tursunov 6-7 (5), 6-0, 6-2 on Monday.