Paes and Raja dispatched the pair of Nikoloz Basilashvili and Andreas Haider-Maurer 6-2 6-3 in their opening round.
They have a tough job at hand as now they are up against fifth seeds Jamie Murray and Bruno Soares, one of the most consistent teams in the previous season.
Left-handed Divij, who had a great 2017 season, and American Rajeev Ram, seeded 16th, edged out Marius Copil of Romania and Serbia's Viktor Troicki 7-6(5) 6-4 in their opening round.
Meanwhile, 10th seeds Rohan Bopanna and Edouard Roger- Vasselin fought off a late charge from Ryan Harrison and Vasek Pospisil to prevail 6-2 7-6(5).
Bopanna saved a break chance in the sixth game of the second set to remain unbroken, forcing a tie breaker.
Pospisil, who was broken in the sixth game of the opening set, served consecutive double faults in the tie-breaker to hand advantage to Bopanna and Roger-Vasselin.
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