A century by Anustup Mazumdar and a five-wicket haul by Priyanker Mukherjee powered Bengal to an emphatic 80-run win over Orissa in a crucial league match of the East Zone Ranjit Trophy one-day league match at Maligaon, Assam on Monday. This was the second successive defeat for Orissa, who lost to Jharkhand by 96 runs earlier on Saturday. Orissa completed their league engagements with two wins and equal number of defeats.