Left-handed Munro used his bat like a sledge-hammer striking seven sixes and as many fours in his 58-balls knock.
The South Africa-born Munro raised a 105-run stand for the first wicket with Martin Guptill who scored 45 off 41 balls, striking three sixes and five fours in the process.
None of the Indian bowlers, barring Jasprit Bumrah in his first spell, could contain the rampaging Munro. The worst sufferer was debutant Mohammed Siraj, who was struck repeatedly for sixes by the southpaw and ended up giving away 53 runs for the lone wicket of rival skipper Kane Williamson.
Guptill and Munro struck one four each off debutant Siraj in the Hyderabad pace bowlers first over in international cricket to set the tone early in the innings.
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At the other end leggie Yuzvendra Chahal, brought in to bowl the fifth over in place of Kumar, was treated harshly by Guptill who carted him for a couple of sixes over long on. The Black Caps reached 41 without loss after five overs.
Chahal, who had troubled the visitors in the preceding three-game ODI rubber as well as the first T20 game, conceded 17 runs in his first over.
Guptill later danced down the track to smack Chahal over mid-wicket and Munro was almost caught on the boundary line by Kumar in the same over at the end of which the visitors were 83 without loss.
Munro struck Axar Patel for two sixes in successive balls to reach his 50 in 26 balls, besides raising the 100 of the innings in the 11th over before Chahal broke the first wicket stand by having Guptill caught at long off.
Munro was also let off on 79 by Chahal off Kumar to remain unconquered.
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