Dhaka: The tourists crumbled to a resounding five-wicket defeat at the hands of Bangladesh, as an inspired bowling display from the hosts exposed flaws, once again, in the Windies' batting line-up.
Having won the toss and batted, it became evident that it was not to be a fruitful batting track, as Kieran Powell and Hope had to work hard for runs early doors.
The returning and highly potent Tamim Iqbal departed in the following over, Chase picking up a wicket as the flamboyant opener swiped hard and edged to Bishoo.
Imrul Kayes then lasted just two balls from Oshane Thomas- the first yielded a plucky edge which flew for four, and the second was a bamboozling full one from round the wicket which nailed the stumps.
Das accumulated well for his 41 before being cleaned up a Roach ripper to leave the hosts 89/3, but Shakib and Mushfiqur Rahim quelled any threat of an impressive Windies fight-back with a 57-run stand before the former nicked one behind for 30, Rovman Powell picking up the scalp.
Soumya Sarkar scored 19 before edging to slip, Chase getting his second wicket, but Mushfiqur passed 50 as he guided his side home in unperturbed fashion, the hosts securing a dominant five-wicket win on a tricky batting track with just under 15 overs remaining.
Earlier, skipper Mortaza and Rahman took three wickets each Sunday as Bangladesh restricted West Indies to 195-9.
West Indies won the toss at the Sher-e-Bangla National Stadium and batted first on a slow pitch. The visitors were reduced to 127-6 after 40 overs despite opener Shai Hope making 43 off 59 balls.
Roston Chase, who made 32, put on a partnership worth 51 runs with Keemo Paul for the seventh wicket to give West Indies some momentum.
Paul made 36 off 28 balls with two sixes and a four before he was dismissed by Mustafizur in the final over of the innings.
Left-arm pacer Mustafizur finished with 3-35 after fellow fast bowler Mashrafe grabbed 3-30 playing his 200th ODI -- the first Bangladeshi to do so.