The Maratha soldiers invaded and occupied western
Bengal up to the
Hooghly River. During that period of invasion by the Marathas, mercenaries called as "
bargis", perpetrated atrocities against the local population, The resulting casualties of Bargi onslaught against in Bengal are considered to be among the deadliest massacres in Indian history. According to the 18th-century Bengali text
Maharashtra Purana written by Gangaram: Many of the Bengali Hindus in western Bengal also fled to take shelter in eastern Bengal, fearing for their lives in the wake of the Maratha attacks. The further attacks took place in 1748 in
Bihar, on
Murshidabad in 1750, and in 1751 in Western Bengal. The internal fights within the Alivardi Khan's military also contributed to their losses. For example, in 1748
Pathan soldiers rebelled and seized
Patna which they controlled for some time. Another example is the
Faujdar of
Purnea who departed from Alivardi and created a small autonomous state. Apart from territorial losses, the Nawab of Bengal also suffered severe economic losses. Industries such as agriculture and trade were dislocated and a large number of people migrated from Western Bengal to Northern and Eastern districts. ==See also==