Pace bowler Matt Henry has become the 15th New Zealander to take 100 test wickets on a day that all went the Black Caps' way.
Henry took 5-15 from 13.2 overs as New Zealand dismissed India for just 46, their lowest total on home soil, on day two of the first test at M Chinnaswamy Stadium in Bengaluru on Thursday.
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Thanks to opener Devon Conway's 91, the Black Caps were in a dominant position at stumps at 180-3, with an overall lead of 134 runs with seven wickets remaining. Rachin Ravindra (22 not out) and Daryl Mitchell (14 not out) will resume on day three.
After day one was rained out, Indian captain Rohit Sharma won the toss and elected to bat, something the Black Caps were expected to also do, and the decision immediately back-fired, with the ball getting significant movement.
Sharma was the first to go, bowled by Tim Southee, and was quickly followed to the pavilion Virat Kohli and Sarfaraz Khan as India 10-3 after 10 overs.
O'Rourke dismissed KL Rahul in his next over, then Henry removed Ravindra Jadeja and Ravichandran Ashwin with the last two balls before the break as the hosts went from 31-3 to 34-7 in three overs.
Pant survived Henry's hat-trick ball but two deliveries later was gone, edging one to new captain Tom Latham in the slips, top-scoring with 20 from 49.
Kuldeep Yadav became Henry's 100th scalp, for his fourth test five-wicket bag, as India were dismissed in 31.2 overs for their third-lowest total and the lowest first innings total in test history for a team winning the toss and opting to bat.
O'Rourke was almost as impressive, finishing with figures of 4-22 from 12 overs.
In reply, Conway and Latham (15 from 49) put on 67 runs for the first wicket before Conway and Will Young (33 from 73) added another 75 for the second wicket.
The pair were dismissed in quick succession, before Ravindra and Mitchell settled in before stumps. Conway fell nine runs short of his fifth test century in just 105 balls, including 11 fours and three sixes.
BLACK CAPS 100 TEST WICKET CLUB
Richard Hadlee 431
Tim Southee 383*
Daniel Vettori 361
Trent Boult 317
Neil Wagner 260
Chris Martin 233
Chris Cairns 218
Danny Morrison 160
Lance Cairns 130
Ewen Chatfield 123
Richard Collinge 116
Bruce Taylor 111
John Bracewell 102
Dick Motz 100
Matt Henry 100*