Opening partner Verma also began peppering the boundaries, making it look easy as she plundered four fours off the world's top T20 bowler Megan Schutt in a single over.
Poonam (4/19) snapped four wickets, two in successive deliveries in the 12th over, to break the back of Australia's chase. At the same time, in this match, captain Harmanpreet Kaur could not do anything awesome and was out only by scoring runs. Chasing 133, Australian openers Beth Mooney and Alyssa Healy provided a steady start as the duo put on 32 runs for the first wicket. Deepti Sharma's 49 led India to its total of 132-4. Immediately after reaching the half-century mark, Healy (51) was dismissed by Poonam Yadav, restricting Australia to 67/3.
The first completely deceived Haynes to have her stumped for six, before Perry went first ball when she was bowled between bat and pad.
Nevertheless, left-arm spinner Jess Jonassen (2/24) snapped 2 fast wickets, Smriti Mandhana (10 off 11) and Harmanpreet (2 off 5) to minimize India to 47 for 3. Deepti (49 not out) and Jemimah Rodrigues (26) then added 53 runs to bring up the hundred.
The US and France go head-to-head over the future of 'the West'
And French President Emmanuel Macron has also given his views. "Is this an America that 'rejects the worldwide community"? he asked.
Alyssa Healy had returned to form with a timely 51 but her teammates struggled around her, Ashleigh Gardner (34) the only other batter into double figures.
"It's a great feeling to win the first game". I'm happy we got 130 and that was something with which our bowlers can do well. "What a brilliant start to the world cup and an absolutely thrilling victory by the women in blue!"
Poonam was suffering from injuries in the buildup to the tournament and she thanked her physio and teammates to help her get back to match fitness in time for the World Cup. Our team is looking nice, earlier we depended on two-three players, ' India skipper Harmanpreet Kaur said after the match.
Voted India's top female player a year ago, she bagged the crucial wickets of Healy, Rachael Haynes and Ellyse Perry, and was desperately unlucky not to grab a hat-trick in her match-winning 4-19.