After the successful campaign of Karnataka and the Trichinopolly, Raghuji returned from Karnataka. He undertook six expeditions into Bengal from 1741 to 1748. The resurgent Maratha Empire launched brutal raids against the prosperous Bengali state in the 18th century, which further added to the decline of the Nawabs of Bengal. During their invasions and occupation of Bihar and western Bengal up to the Hooghly River, Raghuji was able to annex Odisha to his kingdom permanently as he successfully exploited the chaotic conditions prevailing in Bengal after the death of its governor Murshid Quli Khan in 1727. Constantly harassed by the Bhonsles, Odisha, Bengal and parts of Bihar were economically ruined. Alivardi Khan, the Nawab of Bengal made peace with Raghuji in 1751 ceding Cuttack (Odisha) up to the river Subarnarekha, and agreeing to pay Rs. 1.2 million annually as the Chauth for Bengal and Bihar.