Purnia

Purnia (; also romanized and officially known as Purnea) is the fourth largest city of Bihar and is emerging as the largest economic hub in North Bihar. It serves as the administrative headquarters of both Purnia district and Purnia division in the Indian state of Bihar. It is well known for its favourable climate like Darjeeling and has an abundance of resources for human settlements and economic activities. The total geographical area of Purnia Urban Agglomeration is 92 km2 (35.52 sq mi) which is next only to Patna. The population density of the city is 3058 persons per km sq. making it the 4th largest city of Bihar by population.