Chasing a difficult 150-run goal, Mandhana smashed 52 off 49 balls and shared 57 runs with Jemimah Rodrigues (23 off 26) for the second wicket to set the platform for India earlier than the guests misplaced 4 wickets in a span of 10 runs to lose the plot.
For Australia, right-arm pacer Nicola Carey (2/42) was the decide of the bowlers, whereas Ashleigh Gardner (1/22), Annabel Sutherland (1/13) and Georgia Wareham (1/15) scalped a wicket every.
India thus ended their Australia tour heartbroken, having already misplaced the three-match ODI sequence 1-2 earlier than drawing the rain-marred lone historic day/evening Check.
India’s run chase began on a disappointing style as they misplaced hard-hitting opener Shafali Verma (1) early, caught by Vlaeminck at brief fine-leg off Gardner within the second over.
However Mandhana appeared in ominous contact as she displayed her big selection of pictures — pulling, clipping off the pads and hitting by covers area — to select up three boundaries within the fifth over.
Mandhana and Rodrigues performed with warning with the previous discovering the boundaries in between as India reached 54 runs within the tenth over.
Rodrigues then hit Wareham straight over mid-on within the subsequent over however she departed two balls later in quest of too many boundaries, caught at long-off by Vlaeminck.
Mandhana quickly reached her fifty off simply 46 balls with a boundary off Carey however she perished 4 balls later, caught by Australia skipper Meg Lanning as India reached 93 for 3 by the tip of the fifteenth over.
Needing 57 off 30 balls, India’s chase derailed thereafter as they misplaced two extra fast wickets, together with that off skipper Harmanpreet Kaur (13).
It was one more failure from Kaur as she drove one straight to Lanning off Sutherland whereas attempting to clear the internal circle.
Pooja Vastrakar (5) was then cleaned up by Carey within the subsequent over as India slumped to 99 for 4 within the seventeenth over.
From there on, it was no trying again for Australia as they restricted India to 135 for six.
Richa Ghosh remained unbeaten on 23 off 11 balls whereas Deepti Sharma was not out on 9.
Earlier, opener Beth Monney scored a half-century whereas Tahlia McGrath supplied late flourish with an unbeaten 44 to assist Australia placed on board an honest 149 for 5.
Opting to subject first after successful the toss, the Indian bowlers picked up wickets at common intervals however the hosts scored 40 runs within the final 19 balls to grab the momentum.
Left-arm spinner Rajeshwari Gayakwad (2/37), Renuka Singh (1/23), Pooja Vastrakar (1/24) and off-spinner Deepti Sharma (1/24) have been the wicket-takers for India as Australian batters struggled to attain freely within the center overs.
Mooney top-scored for Australia with a 43-ball 61 with 10 boundaries.
In direction of the tip, McGrath scored 44 not out off 31 balls and along with Gerorgia Wareham (13 not out) added 32 invaluable runs for the sixth wicket to get Australia near the 150-run mark.
McGrath hit six boundaries and one six.
India made one change, bringing in Harleen Deol rather than Yastika Bhatia. Australia too made a change with Annabel Sutherland coming in for Hannah Darlington.
India had misplaced the second T20I by 4 wickets, whereas the opening sport was washed out.