The fourth seeded Indians lost the final 6-7(5) 7-6(3) 8-10 to the second seeded brothers' team.
Divij and Raja split euro 2,350 and earned 55 points each for making the title clash.
In the singles event Somdev Devarman had lost the semifinals to eventual winner Steve Johnson of the USA.
Divij and Raja were playing their fourth final of the season, having won the Kyoto event and ending runners-up at Johannesburg and at Leon, Mexio.