Bangladesh now lead eighth-ranked Pakistan by five points, while it is ahead of ninth-ranked West Indies by 14 points.
Bangladesh completed a five-wicket win over New Zealand after chasing down a 271-run target; Black Caps win tri-series.
Bangladesh still searching for maiden away win against New Zealand.
New Zealand continued their winning streak in the Tri-Nation series hammering Ireland by a whopping margin.
New Zealand has been unbeaten so far, and the home side will need to put together a strong performance to alter that.
The left-arm seamer picked up four wickets while the opener hit an unbeaten 87.
Bangladesh will be keen to gain some winning momentum ahead of the Champions Trophy.
New Zealand registered consecutive wins in the ongoing Tri-Series after they defeated Bangladesh by four wickets.
With a washout under its belt, the Asian side will relish another opportunity to get used to conditions as it takes on buoyant New Zealand.
Niall maiden ODI ton goes in vain as Ireland slumps to first loss in tri-series.