Visitors India drew first blood in the three-match T20 series against Australia when they beat their hosts by 37 runs in front of a capacity crowd at Adelaide Oval on Tuesday.
The tourists' victory was set up by a belligerent knock of 90 off 55 balls from vice-captain Virat Kohli as India posted 188 for three after winning the toss and deciding to bat first.
Kohli and Suresh Raina (41) added 134 for the third wicket in the one major partnership that propelled the innings while opener Rohit Sharma contributed 31 from 20 balls.
Australia got off to a flying start in the chase with openers David Warner (17) and Aaron Finch (44) putting on 47 in the first five overs.
India's spinners though pulled the game back and in the end were the deciding factor to the outcome of the match as the hosts found it difficult to play offspinner Ravi Ashwin and left-arm tweaker Ravi Jadeja.
Ashwin finished with figures of two for 28 in four overs while Jadeja also picked up two wickets and only went for 21 runs in his allotted overs as Australia were bowled out for 151 in 19.3 overs.
Jasprit Bumrah, one of two seamers making their T20I debut for India, finished the night with three for 23 while the other debutant, Hardik Pandya, went for 30 in his first two overs but came back to claim a wicket.
The second T20I takes place in Melbourne on Friday.