Banka is one of the thirty-eight districts of Bihar state, India. The district headquarter of Banka is situated in Banka town. The district has been established on February 21, 1991.Earlier it was the richest and largest Sub-Division of the district Bhagalpur.

Banka is the homeland of the revolutionary Satish Prasad Jha, one of seven martyrs[clarification needed] who hoisted the flag of India at the Secretariat building near Patna on 11 August 1942. Jha was born in Kharhara near Dhakamod,.Bhubaneswar Mishra, a noted regional revolutionary from village Faga has contributed a lot in the freedom movement.He was sentenced life imprisonment for killing many cruel British forces. Banka has been an attractive destination for veteran socialists.Madhu Limaye represented the constituency twice. George Fernandis and Rajnarayan also contested the parliamentary election in this constituency. There were also a number of veteran leaders of the Indian National Congress: Vindhyavasini Devi, MLA ( 1957–1967), Shakuntala Devi ex M.P., ex chief minister of Bihar Chandrashekhar Singh, Chaturbhuj Singh Ex. M.L.A., ex Rajya Sabha MP Kamakhya Prasad Singh, ex MP Manorama Singh, and ex MLA Jai Prakash Mishra. Digvijay Singh (14 November 1955 – 24 June 2010) was an independent who represented Banka in the Lok Sabha, the lower house of the Indian Parliament. Banka played vital role in freedom of India.

The district, part of Bhagalpur Division, has its headquarters at Banka town. Banka district occupies an area of 3,020 square kilometres (1,170 sq mi),comparatively equivalent to Canada’s Akimiski Island.

Banka is gradually becoming a religious tourism hotspot for Hinduism and Jainism. Old Mandar Parvat (also known as Mandarachal Parvat in Puran) has many place to visit. A Jain temple at the summit, in close proximity to a Vishnu temple, is a sign of religious tolerance. Every year in January, Bounsi Mela is organised, which depicts the village life of the Mandar region. A Ratha-Yatra procession of Lord Madhusudanah occurs every year on the same day as the Rath Yatra procession in Puri. Fourteenth-century Vaishnava saint Chaitanya Mahaprabhu started this Rath Yatra during his visit to Mandar.

A railway line connecting the existing Bhagalpur-Bounsi line to Rampurhat, which is well-connected to Howrah, is being developed, as is a line connecting Sultanganj to Jasidih through Banka. village Jagatpur should included where railway station banka situated

According to the 2011 census Banka district has a population of 2,029,339,roughly equal to the nation of Slovenia or the US state of New Mexico.This gives it a ranking of 228th in India (out of a total of 640).The district has a population density of 672 inhabitants per square kilometre (1,740/sq mi) .Its population growth rate over the decade 2001-2011 was 26.14%.Banka has a sex ratio of 907 females for every 1000 males, and a literacy rate of 60.12%.