In the last edition of the Dhaka Premier Division Cricket League, a 50-over format, Anamul scored more than 1100 runs at an average exceeding 81 with nine fifties and three centuries.
With this batting display, he became the first and only Bangladeshi batter to score 1000 or more runs in a List A event.
The batter was part of the limited-overs team when the squad was announced.
Also, a back injury of Yasir Ali Rabbi, which eventually ruled him out of the Test series, paved the way for Anamul.
The 29-year-old is among the batters who have scored 7000 or more runs in first-class cricket for Bangladesh, and he is the youngest among them. He has 7348 runs in first-class cricket, with 22 centuries and 37 fifties.
In the ongoing series in the West Indies, apart from the two-match Test series, Bangladesh will take on the hosts in a three-match ODI and three-match T20 series.
The first two T20s will be played at Windsor Park, Roseau, Dominica on 2 and 3 July.
The third T20 and all three ODIs will be played at Providence Stadium, Guyana on 10, 13 and 16 July.