Feni is a district located in the South-Eastern part of Bangladesh Administrative division of Chittagong. As of 2015, the district's estimated population stood at 1,437,371, making it the ninth-most populous district in Chittagong Division. Feni was the part of Greater Noakhali. The administrative hub of the district is in Feni Sadar, in the central section of the district. The original name of the district was Shamshernagar, which served as a sub-district under the district of Noakhali until 15 February 1984. The district consists of six sub-districts: Sonagazi, Fulgazi, Parshuram, Daganbhuiyan, Chhagalnaiya, and Feni Sadar.