However, Mahesh Bhupathi's campaign ended after losing a fiercely-fought men's doubles quarter-final along with partner Julian Knowle to top seeded American twins Mike and Bob Bryan.
While Bopanna and his Chinese partner Jie Zheng overcame the fighting Swedish-Hungarian duo of Johan Brunstrom and Katalin Marosi 7-6(4) 3-6 6-1, Sania and Horia Tecau of Romania posted a comfortable 6-1 7-5 win over Eric Butorac of USA and Alize Cornet of France.
The Indo-Chinese duo will take on the winner of the match between Jean-Julien Rojer and Vera Dushevina and 14th seeds David Marrero and Kimiko Date-Krumm in the quarterfinals.
Bopanna has earlier sealed a spot in his first ever Wimbledon semifinals with French partner Edouard Roger-Vasselin in the men's doubles.
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The Asian combo hit 19 winners as compared to just 12 by their Swedish-Hungarian rivals today.
After winning the first set in a tie-breaker, Bopanna and Zheng lost the second as their opponents converted one of the two break points they got, while the Asians failed to make use of either of the two they received.
Sania and her Romanian partner outplayed the French-American pair in exactly an hour.
They would next face the winner of the match between eighth seeded Daniel Nestor and Kristina Mladenovic, and Aisam Qureshi and Cara Black, seeded 10th.