Brisbane, Oct 17 : Mohammed Shami made a surprise entry and picked up three wickets in the final over as India beat defending champions Australia by six runs in their first warm-up match of the ICC Men's T20 World Cup at The Gabba on Monday. After fifties from KL Rahul (57) and Suryakumar Yadav (50) helped India post a challenging 186/7 in their 20 overs, Australia needed 16 runs off the last two overs to successfully chase down the total. But Harshal Patel conceded only five runs in a superb 19th over and picked up the wicket of captain Aaron Finch, who top-scored with a 54-ball 76, apart from a brilliant run-out of Tim David by Virat Kohli's direct hit. Shami was then a surprise pick to bowl the final over after having not bowled in the entire match and made his mark by having Pat Cummins caught at long-on, thanks to a phenomenal one-handed catch by Kohli at long-on. Shami then nailed his last two yorkers right and knocked over Josh Inglis and Kane Richardson to seal a narrow win for India in a final over where four wickets fell, including that of Ashton Agar. The chase of 187 for Australia started well as Mitchell Marsh got some batting practice with an 18-ball 35, before falling in the final over of power-play, while Finch got going from the other end too. India started with five bowlers in five overs but were hammered for runs by Marsh and Finch. After Marsh fell to Bhuvneshwar Kumar, Steve Smith was next to fall, cleaned up by leg-spinner Yuzvendra Chahal. Glenn Maxwell smacked Chahal for four fours in his 16-ball 23, but nicked behind off Bhuvneshwar just as it felt he would last long at the crease. Though Marcus Stoinis fell cheaply to Arshdeep Singh, Finch and David had kept Australia in the match till they lost their last six wickets for nine runs in the last two overs, something which will boost India's confidence in death over bowling ahead of the main tournament. Brief scores: India 186/7 in 20 overs (KL Rahul 57, Suryakumar Yadav 50; Kane Richardson 4/30) beat Australia 180 all out in 20 overs (Aaron Finch 76, Mitchell Marsh 35; Mohammed Shami 3/4, Bhuvneshwar Kumar 2/20) by six runs. /IANS