Opener Munro blasted six fours and two sixes in his 42-ball 59, while skipper Williamson treated the Indian bowlers with equal disdain, hitting them out of the park four times in his 26-ball 51.
Taylor then clobbered an unbeaten 54 off 27 balls. His innings was laced with three sixes and as many fours.
Opener Martin Guptill also chipped in with a 19-ball 30.
Earlier, India skipper Virat Kohli won the toss and decided to field.
For India, Jasprit Bumrah (1/), Shardul Thakur (1/44), Yuzvendra Chahal (1/32), Shivam Dube (1/24) and Ravindra Jadeja (1/18) snapped one wicket each.
Brief Score:
New Zealand: 203 for 5 in 20 overs (Colin Munro 59, Kane Williamson 51, Ross Taylor 54; Jasprit Bumrah 1/31).