The district of tiruvarur has been carved out as a separate district due to trifurcation of Tanjore district. According to this division, seven taluks namely kudavasal, tiruvarur, needamangalam, mannargudi, nannilam, thiruthuraipoondi and valangaiman where detached from the tanjore district to form this new district. At present also this district is comprised of seven taluks and ten community development blocks.