Mughals invaded again in 1740. At this time the Raja of Ramgarh was the most powerful hill chieftain, and making alliance with several other rulers he took over the fortress of Ramgarh. The Raja offered no resistance to the Maratha general Raghoji I Bhonsle, who passed through the district on his way to raid Medinipur in Bengal. Due to dynastic struggles, a Chero pretender had made claim to a British agent in Patna to be the rightful ruler of Chero domains in Palamu. The British took the opportunity to take over Palamu Fort. In 1800, one of the Chero rajas enacted a policy against tenants, who rebelled in the Chero insurrection. This rebellion was put down by British troops, who annexed the district into their own territory. Geography The district lies between 23°50′ and 24°8′ north latitude and between 83°55′ and 84°30′ east longitude. It is bordered on the north by Son River & Bihar and on the east by the Chatra and Hazaribagh districts, on the south by Latehar District and on the west by Garhwa District. The major rivers flowing through Palamu district are Son, Koel and Auranga. The major crops grown are Rice and Sugarcane. Many minerals are found here like Iron ore, Bauxite, Lithium, Dolomite and Coal. National protected area Betla National Park is a national park located on the Chota Nagpur Plateau in the LATEHAR district of Jharkhand, India. Politics |} Administration Palamau district consists of 21 Blocks. The following are the list of the Blocks in Palamau district: Economy In 2006 the Ministry of Panchayati Raj named Palamau one of the country's 250 most backward districts (out of a total of 640). It is one of the 24 districts in Jharkhand currently receiving funds from the Backward Regions Grant Fund Programme (BRGF). Demographics According to the 2011 census Palamu district has a population of 1,939,869, giving it a ranking of 243rd in India (out of a total of 640). The district has a population density of . Its population growth rate over the decade 2001-2011 was 25.94%. Palamu has a sex ratio of 929 females for every 1000 males, and a literacy rate of 65.5%. Scheduled Castes and Tribes make up 27.65% and 9.34% of the population respectively. According to the census, 86.77% of the population follows Hinduism, while 12.28% follow Islam. Languages At the time of the 2011 Census of India, 65.49% of