Mominul and Mushfiqur are propelling Tigers following batting debacle in the early part of the innings at the home of cricket Sher-e-Bangla National Cricket Stadium at Mirpur.
Mominul struck 100 off 150. It was his seventh century.
The left-hander is not out on 125 off 201 while Mushfiqur scores 85 of 161.
Till the filing of this report, Bangladesh score 231 for the loss of thrice in 69.1 overs.