The semi-finalists from Rio 2016 Saina Mirza and Rohan Bopanna defeated Australian wild card entry Jaimee Fourlis and Luke Saville 7-5, 6-3 in an hour and 14 minutes.
Eighth-seeded Saina Mirza and Anna Danilina defeated the unseeded American-Hungarian team of Dalma Galfi and Bernarda Pera 6-2, 7-5 in 1 hour, and 17 minutes.
The three-time Melbourne semifinalist was in command for the entirety of the one-hour, 32-minute matchup with Hijikata. With his aggressive ball-striking, he consistently outmatched the World No. 169, hitting 30 winners on the Rod Laver Arena.
The sixth seed rallied from a set down to win on Margaret Court Arena with scores of 3-6, 3-6, 6-3, 6-2, 6-2, keeping him alive in his quest to top his quarterfinal performance from Melbourne last year.
Djokovic did not drop a beat throughout the match and claimed a clinical win despite a spirited effort from the World No. 75 Carballes Baena. The fourth seed sealed the win in two-hour, and two minutes converting five of nine break points to book a second-round meeting with the winner of the
World No 2 Casper Ruud made a perfect start to his Australian Open campaign, defeating Czech Tomas Machac 6-3, 7-6(6), 6-7(5), 6-3 to reach the second round in Melbourne with his eyes set at the top spot in the ATP rankings on Tuesday.
Sen defeated Prannoy 21-14, 21-15 in the men's singles to settle his score against the World No 9 after he had suffered a defeat in the Malaysia Open earlier this month.
With a 6-3, 6-3, 4-6, 6-7(7), 7-6(10-5) stunning triumph, Murray moved into the next round defeating resilient Berrettini in a match that lasted for four hours, 49 minutes to secure the statement result in Rod Laver Arena.