Kishanganj district, which was previously part of Purnia district, is part of the Mithila region. Mithila first gained prominence after being settled by Indo-Aryan peoples who established the Mithila Kingdom. During the late Vedic period, Kingdom of the Videhas became one of the major political and cultural centers of South Asia, along with Kuru and Pañcāla. The kings of the Kingdom of the Videhas were called Janakas. The Mithila Kingdom was later incorporated into the Vajji confederacy, which had its capital in the city ofVaishali, which is also in Mithila. Kishanganj was an old and important Sub-Division of Purnia district. After the long and hard struggle of around seventeen yearsby the people of Kishanganj including social workers, politicians, journalists, businessmen, farmers, etc., the Kishanganj district was carved out of Purnia district on 14 January 1990.
Geography
Kishanganj district occupies an area of, comparatively equivalent to Maui in the United States. Kishanganj district is surrounded by Araria district in the west, Purnia district in the south-west, Uttar Dinajpur district of West Bengal on the east, and Darjeeling district of West Bengal and Nepal on the north. A narrow strip of West Bengal, about 20 km wide separates it from Bangladesh. Kishanganj district is located between 250 20’ and 260 30’ north latitudes, and 870 7’ and 880 19’ east longitudes.
Kishanganj is the only tea producing district in Bihar.
Sub-divisions
The district comprises only one sub-division, Kishanganj, which is further divided into seven blocks: Bhahadurganj, Dighalbank, Kishanganj, Kochadhaman, Pothia, Terhagachha, Thakurgunj
According to the 2011 census Kishanganj district has a population of 1,690,400, roughly equal to the nation of Guinea-Bissau or the US state of Idaho. This gives it a ranking of 293rd in India. The district has a population density of . Its population growth rate over the decade 2001-2011 was 30.44%. Kishanganj has a sex ratio of 946 females for every 1,000 males, and a literacy rate of 57.04%. A vast majority of the people live in the villages. Kishanganj is the only district in Bihar, which is Muslim majority, with Muslims forming about 68 per cent of the population, there are also Hindus of whom are Surajpuris. There also are small Santal pockets. Most of the inhabitants of Kishanganj speak Maithili and Surajpuri. Kishanganj district had a literacy rate of 31.02 per cent in 2001, the lowest amongst all the districts of Bihar. The literacy rate of Bihar at 47.53 per cent is amongst the lowest in India, which has a literacy rate of 64.84 per cent. While the male literacy rate in Kishanganj district stood at 42.8 per cent, female literacy at 18.49 per cent was one of the lowest in India. At the time of the 2011 Census of India, 42.61% of the population in the district spoke Surjapuri, 32.62% Urdu, 9.05 Hindi, 6.66% Bengali, 3.45% Santali, 2.63% Maithili and 1.23% Bhojpuri as their first language.