Information: - Purnia district is one of the thirty-eight districts of Bihar state, India. The town of Purnia is the administrative headquarters of this district. Purnia district is a part of Purnia Division. The district extends northwards from the Ganges river. - Bihar is a state in the eastern part of India. It is the 13th-largest state of India, with an area of . The third-largest state of India by population, it is contiguous with Uttar Pradesh to its west, Nepal to the north, the northern part of West Bengal to the east, with Jharkhand to the south. The Bihar plain is split by the river Ganges which flows from west to east. - Purnia division is an administrative geographical unit of Bihar state of India. Purnia is the administrative headquarters of the division. The division consists of Purnia district, Katihar district, Araria district, and Kishanganj district in 2005. - Bengal (bgl; Bengali: , and ) is a region in Asia which is located in the eastern part of the Indian subcontinent at the apex of the Bay of Bengal. Geographically, it is made up by the Ganges-Brahmaputra delta system, the largest such formation in the world; along with mountains in its north (bordering the Himalayan states) and east (bordering Northeast India and Burma). - 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 larger cities of Bihar & is known all over East India for its highly strategic railway junction. - Nepal, officially the Federal Democratic Republic of Nepal, is a landlocked central Himalayan country in South Asia. It has a population of 26.4 million and is the 93rd largest country by area. Bordering China in the north and India in the south, east, and west, it is the largest sovereign Himalayan state. Nepal does not border Bangladesh, which is located within only 27 km (17 mi) of its southeastern tip. It neither borders Bhutan due to the Indian state of Sikkim being located in between. Nepal has a diverse geography, including fertile plains, subalpine forested hills, and eight of the world's ten tallest mountains, including Mount Everest, the highest point on Earth. Kathmandu is the nation's capital and largest city. It is a multiethnic nation with Nepali as the official language. - West Bengal is an Indian state, located in East India on the Bay of Bengal. It is India's fourth-most populous state, with over 91 million inhabitants. It has a total area of , making it similar in size to Serbia. A part of the ethno-linguistic Bengal region, it borders Bangladesh in the east and Nepal and Bhutan in the north. It also has borders with five Indian states, including Odisha, Jharkhand, Bihar, Sikkim and Assam. - Araria district is one of the thirty-eight districts of Bihar state, India, and Araria town is the administrative headquarters of this district. Araria district is a part of Purnia division. The district occupies an area of 2830km. It has a view of Mount Kangchenjunga (One of the great peaks of the Himalayan range). This District has total 9 blocks (CD Block ). - Uttar Pradesh (Hindi : ), abbreviated as UP, is the most populous state in the Republic of India as well as the most populous country subdivision in the world. It was created on 1 April 1937 as the United Provinces during British rule, and was renamed "Uttar Pradesh" in 1950. Lucknow is the capital city of Uttar Pradesh. Ghaziabad, Bulandshahr, Kanpur, Gorakhpur, Allahabad, Raebareli, Moradabad, Bareilly, Aligarh, Sonbhadra, and Varanasi are known for their industrial importance in the state. On 9 November 2000, a new state, Uttarakhand, was carved out from the Himalayan hill region of Uttar Pradesh. The state in the northern region of the Indian subcontinent has over 200 million inhabitants. - Kishanganj district is one of the thirty-eight districts of Bihar state, India, and Kishanganj town is the administrative headquarters of this district. Kishanganj district is a part of Purnia division. - Katihar district is one of the thirty - eight districts of Bihar state , India , and Katihar town is the administrative headquarters of this district . The district is a part of Purnia Division . - Jharkhand ("Bushland") is a state in eastern India carved out of the southern part of Bihar on 15 November 2000. The state shares its border with the states of Bihar to the north, Uttar Pradesh to the north-west, Chhattisgarh to the west, Odisha to the south, and West Bengal to the east. It has an area of . The city of Ranchi is its capital while the industrial city of Jamshedpur is the most populous city of the state. - India, officially the Republic of India ("Bhrat Gaarjya"), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country (with over 1.2 billion people), and the most populous democracy in the world. It is bounded by the Indian Ocean on the south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast. It shares land borders with Pakistan to the west; China, Nepal, and Bhutan to the northeast; and Myanmar (Burma) and Bangladesh to the east. In the Indian Ocean, India is in the vicinity of Sri Lanka and the Maldives. India's Andaman and Nicobar Islands share a maritime border with Thailand and Indonesia. Its capital is New Delhi; other metropolises include Mumbai, Kolkata, Chennai, Bangalore, Hyderabad and Ahmedabad. - The Ganges, also Ganga is a trans-boundary river of Asia which flows through the nations of India and Bangladesh. The river rises in the western Himalayas in the Indian state of Uttarakhand, and flows south and east through the Gangetic Plain of North India into Bangladesh, where it empties into the Bay of Bengal. It is the third largest river in the world by discharge. What is the relationship between 'katihar district' and 'purnia district'?
Answer:
shares border with