Chittagong: Mominul was unbeaten on 77 and along with Ayub had taken Bangladesh to 103/2 at stumps on the second day of the first Test in Chittagong on Thursday, trailing by 366.
New Zealand were braced to defend a below-par first innings score in the first session of the second day. BJ Watling and Trent Boult slowly developed a mischievous plan that has been repeated seven times already this year. They fended off the Bangladesh bowlers first, then got comfortable, soon they were dominating the attack and New Zealand were in charge of the Chittagong Test.
Watling and Boult, the tenth wicket pair, added 127 runs. It shot their total up from 342 for 9 to 469 all out by the end of the second session. Watling completed a second Test century off 171 balls. He was finally dismissed for 103 while Boult was unbeaten on 52.
The visitors added 189 runs on the last day, after which Bangladesh went to stumps at 103 for 2 with Mominul Haque, on 77 off 71 balls, and debutant Marshall Ayub at the crease.
But the home side were shaken by New Zealand's late charge, and it was evident in how they lost two wickets in the first 3.3 overs. Opener Tamim Iqbal chased a slightly full ball while Anamul Haque was done by Doug Bracewell's predictable inward movement. Mominul and Ayub, however, stopped the rot till the end of day's play, as they added unbroken 95 runs for the third wicket.
Earlier, the South African-born wicket-keeper Bradley-John Watling compiled a career-best 103 as the Black Caps recovered from 282/7 to post 469 all out by tea.
Last man Trent Boult also hit a personal best of 52 not out, helping Watling add a valuable 127 runs for the 10th-wicket on the newly-laid pitch that provided only slow turn to the spinners.
Bangladesh will begin their reply after tea, needing to match the rivals' huge total if they are to avoid defeat in the first game of the two-match series.
Watling, who was on four when he was caught off a Rubel Hossain no-ball, prospered with the help of the tailenders and reached his second century with a six off Abdur Razzak.
His valiant effort ended just at the stroke of tea when he was stumped off Mominul Haque, the eighth bowler deployed by Bangladesh during the innings.
Watling hit six boundaries and two sixes as he surpassed his previous best of 102 not out against Zimbabwe in Napier in January last year.
Boult breezed past his personal best of 33 with a six off Shakib Al Hasan and returned unbeaten as Watling was dismissed attempting to pick up the scoring rate.
The Black Caps, who resumed at the overnight score of 280/5, lost Bruce Martin and debutant Corey Anderson in the first two overs of the day to slip to 282/7.
Martin was caught behind from a thin edge off Rubel and Anderson edged Razzak to first slip, giving the left-arm spinner his third wicket in the innings.
But Watling and Doug Bracewell prolonged the innings by adding 57 for the eight wicket.
Bracewell gifted his wicket when he attempted a rash sweep off Sohag Gazi, missed the line and was bowled for 29.
Brief scores
New Zealand 469 (Williamson 114, Watling 103, Fulton 73, Boult 52*)
Bangladesh 103 for 2 (Mominul 77*)
Status Bangladesh trial by 366 runs