Medium-pace bowler Harshit Rana dismissed the left-handed Conway for the fourth time in successive white-ball matches to start with a maiden wicket. Conway made 19 off nine balls.
Wicketkeeper-batter Seifert, who made 24, followed his opening partner back to the pavilion without troubling the score as he fell to Varun Chakravarthy’s spin.
Glenn Phillips kept up the attack in his brief stay of 19 runs and, after his departure, the left-handed Rachin Ravindra took the lead in his 44 off 26 balls.
India struck regular blows including two to left-arm wrist spinner Kuldeep Yadav but New Zealand batters kept up the pace and Foulkes finished with a six and four, but the effort was not enough to challenge India.
The left-handed Kishan, who returned to the Indian team in the opener after two years, lifted the hosts from 6-2 with a string of boundaries.
He reached his 50 in 21 balls with a four and kept up the charge until his departure off leg-spinner Ish Sodhi. Kishan struck 11 fours and four sixes in his 32-ball knock.
Suryakumar reached his first 50 in the format for 468 days – and 23 innings – after which he raised his bat and looked up to the skies amid the applause.
His previous half-century was against Bangladesh on October 12, 2024.
Suryakumar, who hit nine fours and four sixes in his 37-ball blitz, and the left-handed Shivam Dube, who struck 36, put an unbeaten partnership of 81 to pulverise the opposition.
Matt Henry and Jacob Duffy took a wicket each in the first two overs before Zak Foulkes conceded 24 runs off the third over, which started with a no ball for four and three wides.
