Sodhi has best economy rate (3.37 runs per over) for bowlers delivering more than three overs in the Ford Trophy. He has taken five wickets at an average of 16.20, striking every 29 balls. The selection also comes after his sublime T20 form in Australia's Big Bash, including the figures of six for 11 against the Sydney Thunder.
"In the context of New Zealand conditions, it's rare to use two frontline spinners in a [ODI] team," Larsen said. "Mitchell Santner's our frontline spinner and we saw his class at Eden Park so it's hard to squeeze Ish in alongside him, but he's a massive part of our plans."
A question mark sat over the fitness of Guptill with his strained hamstring.
"Martin has made progress in the last couple of days, but it's not clear whether he'll be available. At this stage it's probably 50-50."
The Black Caps lead the series 1-0.