The Ghaghara River, called Karnali River in Nepal, Mapcha Tsangpo in Tibet, and the lower Ghaghara in Awadh called Sarayu River, is a perennial trans-boundary river that originates in the northern slopes of the Himalayas in the Tibetan Plateau, cuts through the Himalayas in Nepal and joins the Sharda River at Brahmaghat in India. Together they form the Ghaghara River, a major left bank tributary of the Ganges. With a length of 507 km (315 mi) it is the longest river in Nepal. The total length of Ghaghara River up to its confluence with the Ganges at Revelganj in Bihar is 1,080 km (670 mi). It is the largest tributary of the Ganges by volume and the second largest by length after Yamuna.
Purnia (also romanized as Purnea) is the fourth largest city of Bihar and emerging as the biggest 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 have abundance amount of resources for human settlements and economic activities.
Darjeeling District is the northernmost district of the state of West Bengal in eastern India in the foothills of the Himalayas. The district is famous for its hill station and Darjeeling tea. Darjeeling is the district headquarters.
Damodar River is a river flowing across the Indian states of Jharkhand and West Bengal. The valley is rich in mineral resources and is home to large-scale mining and industrial activity. It was also known as the Sorrow of Bengal because of its ravaging floods in the plains of West Bengal. The construction of several dams on the Damodar and its tributaries has helped control some of the flooding.
The Mahananda River is a trans-boundary river that flows through the Indian states of Bihar and West Bengal, and Bangladesh. It is an important tributary of the Ganges.
The Ganges Basin is a part of the Ganges-Brahmaputra-Meghna (GBM) basin draining 1,999,000 square kilometres in Tibet, Nepal, India and Bangladesh. To the north, the Himalaya or lower parallel ranges beyond form the Ganges-Brahmaputra divide. On the west the Ganges Basin borders the Indus basin and then the Aravalli ridge. Southern limits are the Vindhyas and Chota Nagpur Plateau. On the east the Ganges merges with the Brahmaputra through a complex system of common distributaries into the Bay of Bengal. Its catchment lies in the states of Uttar Pradesh (294,364 km2), Madhya Pradesh (198,962 km2), Bihar (143,961 km2), Rajasthan (112,490 km2), West Bengal (71,485 km2), Haryana (34,341 km2), Himachal Pradesh (4,317 km2), Delhi, Arunachal Pradesh (1,484 km2), the whole of Bangladesh, Nepal and Bhutan. Several tributaries rise inside Tibet before flowing south through Nepal. The basin has a population of more than 500 million, making it the most populated river basin in the world.
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 (Seemanchal).
The Subarnarekha River flows through the Indian states of Jharkhand, West Bengal and Odisha.
The Burhi Gandak River is a tributary of the Ganges. It is known as Narayani in its upper reaches. The Burhi (“Old”) Gandak flows parallel to and east of the Gandak River in an old channel.
The Kosi or Koshi is a transboundary river which flows through China, Nepal and India. It drains the northern slopes of the Himalayas in Tibet and the southern slopes in Nepal. From a major confluence of tributaries north of the Chatra Gorge onwards, the Kosi River is also known as Saptakoshi for its seven upper tributaries. These include the Tamur River originating from the Kanchenjunga area in the east and Arun River and Sun Kosi from Tibet. The Sun Koshi's tributaries from east to west are Dudh Koshi, Likhu Khola, Tamakoshi River, Bhote Koshi, and Indravati. The Saptakoshi crosses into northern Bihar, India where it branches into distributaries before joining the Ganges near Kursela in Katihar district.
The Baitarani is one of six major rivers of Odisha, India. Venerated in popular epics and legends, the Baitarani River is a source of water for agricultural irrigation. The coastal plain of Odisha has the name of "Hexadeltaic region" or the "Gift of Six Rivers". These deltas divide the coastal plain into three regions from north to south. The Baitarani, the Mahanadi and the Brahmani rivers form the Middle Coastal Plain, with evidence of past "back bays" and present lakes.
Mayurakshi River is a major river in Jharkhand and West Bengal, India, with a long history of devastating floods.
Mahendra Highway, also called East-West Highway runs across the Terai geographical region of Nepal, from Mechinagar in the east to Bhim Datta in the west, cutting across the entire width of the country. It is the longest highway in Nepal and was constructed by cooperation of various countries. The highway is named after one of the most cunning kings of Nepal, Mahendra Shah.
Bihar is India's most flood-prone state, with 76% of population in the North Bihar living under the recurring threat of flood devastation. Bihar makes up 16.5% of India's flood affected area and 22.1% of India's flood affected population. About 73.06% of Bihar's geographical area, i.e. 68,800 square kilometres (26,600 sq mi) out of 94,160 square kilometres (36,360 sq mi), is flood affected. On an annual basis, they destroy thousands of human lives apart from livestock and assets worth millions. In total, they have claimed 9,500 lives since the government started publishing figures in 1979. North Bihar districts are vulnerable to at least five major flood-causing rivers during monsoon – Mahananda River, Koshi River, Bagmati River, Burhi Gandak River and Gandak – which originate in Nepal. Some south Bihar districts have also become vulnerable to floods from Son, Punpun and Phalgu rivers. The 2013 flood affected over 5.9 million people in 3,768 villages in 20 districts of the state. 2017 flood affected 19 districts of North Bihar killing 514 people and affecting 1.71 crore people.
The Punpun River is a tributary of the Ganges. It originates in Palamu district of Jharkhand and flows through Chatra, Aurangabad, Gaya and Patna districts of the Indian states of Jharkhand and Bihar. Punpun is a place named after the Punpun river in Patna which is situated on the bank of Punpun river. On the bank of Punpun people celebrate Chhath Puja.
The Kamala River originates from Nepal and flows through Indian state of Bihar.
The Kankai River is a trans-boundary river flowing through the hills of Ilam and the plains of the Jhapa District in Nepal. A holy river for many Hindus living nearby, the Kotihom river bank is a common site for death rituals. Kankai Irrigation Project, launched by the Nepalese government irrigates southern Jhapa, including Shivganj, Pachgachi and Mahavara.
North Bihar is a term used for the region of Bihar, India, which lies north of the Ganga river.
Thakurganj railway station serves Thakurganj town in Kishanganj district in the Indian state of Bihar. The Mechi flowing nearby forms the boundary between Nepal and India in the area. On the other side of the border lies Prithivinagar town of Nepal.
