The Indian left-hander had lost the final qualifying round to Latvia's Ernests Gulbis in straight sets but was fortunate to make the main draw as one of the direct entrants withdrew from the tournament.
The unseeded Indo-Ukrainian pair pipped the second seed Chinese team 6-4 6-4 in one hour 21 minutes.
Elena Rybakina defeated 4th-seeded Zhang 7-6(7), 6-3 after one hour and 33 minutes of play.
With the start of a new decade, will the story remain the same or will 2020 witness a new grand slam winner at Melbourne Park?
On Tuesday, one player collapsed to her knees while coughing heavily; another sought medical attention because he was having trouble breathing.
The 2014 Wimbledon runner-up, once as high as No. 5 in the rankings, has had a long slide down to No. 211.
India's top-ranked player Prajnesh Gunneswaran was knocked out in the final of the Australian Open qualifiers.
Roger Federer could square off against Novak Djokovic in the semifinal of the 2020 Australian Open.
Sania Mirza continued her winning run as she entered the final of the women's doubles alongside Nadiia Kichenok on Friday.
Australian Open tournament director Craig Tiley said Thursday the conditions were under a threshold set after Australian Open organizers consulted with with sports and medical experts.
Swiss tennis star Roger Federer said that Rafael Nadal and Novak Djokovic will surpass his record for most Grand Slams in future.
Local star Alex de Minaur pulled out of the Australian Open due to injury.
Prajnesh Gunneswaran remains a step away from entering the Australian Open main draw, but Sumit Nagal crashed out after facing a first-round loss in the qualifiers.
Sania Mirza continued the winning run in her first tournament since two years as she entered the women's doubles semifinal at Hobart International.
Canadian tennis player Brayden Schnur said that the duo should protest against the unplayable conditions in the ongoing Australian Open due to the bushfire smoke.
Tennis Australia said the night helped raise nearly 5 million Australian dollars ($3.5 million) for the victims of recent and ongoing fires in Australia.
Poor air quality has forced a delay in Australian Open qualifiers for the second day in a row.
Men's Doubles World No.1 Robert Farah failed a drug test and has withdrawn from the Australian Open.
Prajnesh Gunneswaran reached the second round of Australian Open qualifiers, but Ankita Raina and Ramkumar Ramanathan were knocked out.
Maria Sharapova felt a "cough coming" as her match against Laura Siegemund was called off in Kooyong Classic in Melbourne.
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