Batting first, Assam were bundled out for a meagre 111.
In reply, Bengal achieved the target in just 19.4 overs.
Iresh Saxena led with three wickets giving away just 14runs, while Sourav Sarkar and Md Sami Ahmed took two wicketseach giving away 30 and 10 runs respectively. Ashok Dinda andSourasish Lahiri also picked up a wicket each.
Utpal Medhi top-scored for Assam with 24, followed byParvez Aziz 23 and Tijender Singh 18.
Opener Anustup Majumder was the top scorer for Bengalwith 32 runs while Sourasish Lahiri made 28 and captain ManojTiwari remained unbeaten on 25.
The pick of the Assam bowlers was Arlem Konwar, whopicked up all the three Bengal wickets giving away 27 runs.
Assam 111 all out in 39.2 overs
Bengal 112 for three in 19.4 overs.