Indian batting faltered after the home team won the toss at M Chinnaswamy Stadium, managing only 182 for nine in 50 overs with Veda Krishnamurthy (61) being the top scorer.
The Kiwis cantered to their target in in 45.4 overs.
The 125-run stand between openers Suzie Bates (59) and Rachel Priest (64) pretty much sealed the match for the visitors, who have bounced back in the series after losing the opening match. Sophie Devine starred with the ball taking three wickets for 40 runs.
The top four sides from the Championship will qualify automatically for the 2017 World Cup, while the bottom four sides will play in the World Cup Qualifier.
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Brief Scores:
India Women 182/9 in 50 overs (Veda Krishnamurthy 61; Sophie Devine 3-40)
New Zealand Women186/4 in 45.4 overs (Rachel Priest 64, Suzie Bates 59; Jhulan Goswami 1-28).