India's veteran star Paes along with his Canadian partner Daniel Nestor fought hard before prevailing over Australian combo of James Duckworth and Chris Guccione 6-2 5-7 7-5, while Bopanna and Florin Mergea of Romania came from a set down to post a 5-7 6-3 6-4 victory against Serbian combination of Filip Krajinovic and Viktor Troicki.
In contrast, top seeded Sania and Martina Hingis had a cake walk against Germany's Julia Goerges and Barbora Krejcikova of Czech Republic, as they advanced to the second round with a comfortable 6-3 6-0 win.
During the match, Paes and Nestor saved three of the five breakpoints that came their way.
The Indo-Canadian duo will now clash with the winner of another first round match between Eric Butorac/Sam Groth and Andre Begemann/Julian Knowle.
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Meanwhile, ninth seeded Bopanna and Mergea also faced a stiff competition from their unseeded opponents from Serbia.
Indo-Romanian combination will next face Americans Austin Krajicek and Donald Young in the second round.
Sania and her Swiss partner hardly had to break a sweat as they thoroughly dominanted the match. With impeccable serving, the Indo-Swiss combination won 70 per cent of the first serve points.
However, Mahesh Bhupathi lost his first round match along with Australia's Nick Kyrgios in the men's doubles yesterday, suffering a straight-set defeat at the hands of Lucas Pouille and Thanasi Kokkinakis.