Indian Bank is a central public sector undertaking. It is under the ownership of the Ministry of Finance, Government of India. It was established in 1907 and is headquartered in Chennai, India. It serves over 100 million customers with 39,734 employees, 5,721 branches with 5,428 ATMs and Cash deposit machines and is one of the top performing public sector banks in India. Total business of the bank has touched ₹1,010,000 crore (US$130 billion) as on 31 March 2022. The bank's Information systems and security processes are certified to meet ISO27001:2013 standard. It has overseas branches in Colombo and Singapore including Foreign Currency Banking Units at Colombo and Jaffna. It has 227 overseas correspondent banks in 75 countries. Since 1978, the Government of India has owned the bank. As per the announcement made by the Indian Finance Minister Nirmala Sitharaman on 30 August 2019, Allahabad Bank merged from 1 April 2020, making Indian Bank now the seventh largest bank in the country.

Bihar (; Hindi pronunciation: [bɪˈɦaːr] (listen)) is a state in eastern India. It is the third-largest state by population and twelfth-largest by territory, with an area of 94,163 km2 (36,357 sq mi). Bihar borders Uttar Pradesh to its west, Nepal to the north, the northern part of West Bengal to the east, and with Jharkhand to the south. The Bihar plain is split by the river Ganges, which flows from west to east. Bihar is also the world's fourth-most populous subnational entity.On 15 November 2000, southern Bihar was ceded to form the new state of Jharkhand. Only 11.3% of the population of Bihar lives in urban areas, which is the lowest in India after Himachal Pradesh. Additionally, almost 58% of Biharis are below the age of 25, giving Bihar the highest proportion of young people of any Indian state. The official languages are Hindi and Urdu, although other languages are common, including Maithili, Magahi, Bhojpuri and other Languages of Bihar. In Ancient and Classical India, the area that is now Bihar was considered the centre of political and cultural power and as a haven of learning From Magadha arose India's first empire, the Maurya empire, as well as one of the world's most widely adhered-to religions: Buddhism. Magadha empires, notably under the Maurya and Gupta dynasties, unified large parts of South Asia under a central rule. Another region of Bihar is Mithila which was an early centre of learning and the centre of the Videha kingdom.However, since the late 1970s, Bihar has lagged far behind other Indian states in terms of social and economic development. It's gained a highly negative reputation among the denizens of India to a degree where being called 'Bihari' is an insult. Many economists and social scientists claim that this is a direct result of the policies of the central government, such as the freight equalisation policy, its apathy towards Bihar, lack of Bihari sub-nationalism, and the Permanent Settlement of 1793 by the British East India Company. The state government has, however, made significant strides in developing the state. Improved governance has led to an economic revival in the state through increased investment in infrastructure, better healthcare facilities, greater emphasis on education, and a reduction in crime and corruption.

Katihar is a city situated in the eastern part of the state of Bihar in India. It is the regional headquarter of Katihar district. It is one of the important cities of Bihar. Also it's a main route of Delhi - Guwahati railway line.