On Saturday, Bangladesh bowled out New Zealand for 98 on the same pitch to set up a nine-wicket win in the third one-day international, their first limited-overs victory over the Black Caps on their home soil.
Four days later Bangladesh claimed three wickets with the first nine balls of the New Zealand innings and contained the home side to 9-134 in Napier.
The Black Caps were 1-3 after Shoriful Islam dismissed Finn Allen and Glenn Phillips with consecutive balls in the second over, and then 4-20 following the fall of Daryl Mitchell.
Jimmy Neesham made 48 and captain Mitchell Santner 23 as New Zealand staged a partial recovery.
Das led an unhurried run chase that saw Bangladesh reach their target with eight balls to spare. The opener was given out lbw to Tim Southee when he was on 22 but had the decision reversed under review and stayed on to steady the innings.
He needed medical treatment for a leg injury at the start of the 18th over when he was 29 and Bangladesh needed 24 from 18 balls. On 33, and with 20 needed from 16 balls, his lofted shot found Ish Sodhi at fine-leg but the fielder stepped over the boundary line in completing a simple catch, giving Das another reprieve.
Clearly impeded while running between the wickets, Das was able to look on from the non-striker's end as Mahedi Hasan (19 not out) finished the chase with a six and a four off Adam Milne in the 19th over.Â
Earlier, Bangladesh captain Najmul Hossain Shanto entrusted the first over to off-spinner Mahedi and the decision paid off when he bowled Tim Seifert with the fourth ball.
Seifert went back to a delivery from Mahedi that he tried to dab wide of slip. But the ball kept low, skipped on and hit his middle stump.
Shoriful then followed up his effort in the third one-dayer, where he took three wickets, with a double strike in the second over. Allen threw his hands, without moving his feet, to a ball going across him and was caught at slip.
Next ball Phillips didn't offer a shot to a delivery that struck him on the knee roll in front of middle. New Zealand called for a review but Phillips had begun to walk off the field before the decision was made.
When Mitchell was bowled by Mahedi, New Zealand were in desperate trouble. Neesham lifted the Black Caps with his 48 from 29 balls, which included four fours and three sixes. But he was out just when the innings seemed to be gaining momentum, at 7-110 in the 17th over.
Shanto (19), Soumya Sarkar (22) and Towhid Hridoy (19) made valuable contributions for Bangladesh but Das held the innings together.
