Spinner Varun Chakravarthy returned figures of 5-42 as India beat New Zealand by 44 runs on Sunday to set up a semi-final clash with Australia in the Champions Trophy.
India won all three of their group matches to top Group A and will play the first semi-final of the 50-over tournament in Dubai on Tuesday.
"Important to finish on a high," India skipper Rohit Sharma said after the win.
"New Zealand are a good team who are playing some good cricket. Very important to get a good result, we played a perfect game."
New Zealand will take on Group B winners South Africa in Lahore on Wednesday in the second semi-final.
India are playing all their matches at the Dubai International Stadium after they refused to tour hosts Pakistan, citing security concerns.
Rohit's team lost the 2023 ODI World Cup final to Australia in Ahmedabad.
"Australia has a rich history of playing ICC tournaments well, but it is about us and what we want to do well on that particular day," said Rohit.
"It will be a great contest, looking forward to that. Hopefully we can stitch one towards us."
Australia and South Africa had to travel to Dubai from Pakistan despite not knowing if they would be playing there, as India were told ahead of the tournament they would play the first semi-final if they qualified no matter where they finished in the group.
South Africa will now have to fly back to Pakistan ahead of their meeting with New Zealand.
Shreyas Iyer's 79 and a late 45 by Hardik Pandya steered India to 249-9 after being invited to bat first.
New Zealand pace bowler Matt Henry stood out with figures of 5-42 from his eight overs.
"The key for us was getting wickets in the powerplay, and that was good to see," New Zealand captain Mitchell Santner said. "Our next game is in Lahore where Henry will be massive."
- Airborne Phillips -
Player of the match Chakravarthy took his first ODI five-wicket haul in just his second match as India bowled out New Zealand for 205 in 45.3 overs despite a valiant 81 by Kane Williamson.
Williamson survived two dropped catches on 17 and 68 in his 120-ball knock before he finally fell, stumped off Axar Patel.
New Zealand lost Rachin Ravindra early as Patel took a superb catch to dismiss the opener for six.
Chakravarthy cut short Will Young's innings on 22 when he bowled him with a googly.
Williamson stood firm but could not find a long-term partner as Daryl Mitchell and Tom Latham were dismissed for 17 and 14 respectively.
India's spinners dominated in helpful conditions, as Kuldeep Yadav sent back Mitchell and Ravindra Jadeja trapped Latham lbw.
In between the two wickets, Williamson hit Jadeja for a boundary to raise his 47th ODI half-century but India kept taking wickets.
Earlier, India were in trouble at 30-3 when Virat Kohli, playing in his 300th one-day international, fell victim to a stunning one-handed catch from Glenn Phillips.
An airborne Phillips clung on to a fast-travelling ball at backward point to dimiss Kohli for 11 off Henry.
Kohli was left standing in disbelief before trudging off the ground to stunned silence.
Iyer and Patel, who made 42, put on 98 for the fourth wicket to rebuild the innings against a disciplined New Zealand attack.
Another stunning catch, this time by Williamson, who flung himself to his left at backward point to make a one-handed grab close to the ground, dismissed Jadeja for 16 off Henry.
Pandya struck four fours and two sixes in his run-a-ball innings to give India a total which proved to be enough.
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