Midfielder Shiloh Gloyn, with a neat reverse stick shot, grabbed the third New Zealand goal nine minutes after halftime before Monika got the second Indian goal from a penalty corner just before the end.
The squad is doing plenty of swapping about during the series, giving players as much game time as possible. The down side of that is it can cause problems for players in terms of unfamiliarity.
''It's the theme of the series. We're constantly changing the lineup," Gunson said.
''India fell away on their press whereas the day before they were quite aggressive. It was quite different for us.
''Credit to them, they played it well, they threw something at us and we need to learn to adapt and change."
Gunson acknowledged the challenging aspect of swapping players about.
''But it's good for us to learn to adapt and play the game as you see it."
Game four and five of the series is in Hamilton on Friday and Saturday.