JOIN USChasing 164 for victory, openers Manan Vohra and captain Unmukt Chand were brutal in their reply as they chased down the target in just 12 overs, scoring 167 runs.
Vohra struck 15 boundaries and two sixes in his 35-ball 79 while Chand came up with 40-ball 72 that was laced with 11 hits to the fence and three over it.
Earlier, opting to bat Australia were dismissed for 163 in 41.1 overs with off-spinner Baba Aparajit picking up five wickets for 38 runs from 8.1 overs.
Only wicketkeeper James Peirson provided some resistance with a patient 51. Apart from Peirson, skipper Cameron Bancroft (27) and William Bosisto (21) managed to get past 20.
While defending the total, Australia captain Cameron Bancroft deployed five bowlers but none of them could manage an economy-rate of below 10.
Vohra and Chand particularly targeted spinners Ashton Turner and Shane Cassell, slamming them for 17.50 and 23 runs an over respectively.
India take on Sri Lanka in their next game on September 29, while Australia play West Indies on the same day.
In the other match of the day, Sri Lanka defeated West Indies by two wickets in their tournament opener.
Brief scores: Australia: 163 all out in 41.1 overs (Cameron Bancroft 26, William Bosisto 27, James Peirson 51; Baba Aparajith 5-38) lt to India: 167 for no loss in 12 overs (Manan Vohra 79 n.o., Unmukt Chand 72 n.o.).