Sone River, also spelt Son River, is a perennial river located in central India. It originates near Amarkantak Hill in Pendra, Chhattisgarh and finally merges with the Ganges river near Maner in Patna, Bihar. The Sone River is the second-largest southern tributary of the Ganges after the Yamuna River. India's oldest river bridge Koilwar Bridge over Sone River connects Arrah with Patna. Sone river is famous for its sand across country. Multiple dams and hydro-electric projects run on its course towards the Ganges.
Bihar Sharif is the headquarters of Nalanda district and the fifth-largest sub-metropolitan area in the eastern Indian state of Bihar. Its name is a combination of two words: Bihar, derived from vihara, also the name of the state; and Sharif. The city is a hub of education and trade in southern Bihar, and the economy centers around agriculture supplemented by tourism, the education sector and household manufacturing. The ruins of the ancient Nalanda Mahavihara, a UNESCO World Heritage Site, are located near the city.
Magadh University is a public state university and institution of higher education in Bodhgaya, Bihar, India. It is recognised by the University Grants Commission (UGC).
Arwal district is one of the thirty-eight districts of Bihar state, India, and Arwal town is the administrative headquarters of this district. It was earlier part of Jehanabad district.
Jehanabad district is one of the thirty-eight districts of Bihar state, India. Jehanabad town is the administrative headquarters of this district. Jehanabad district is a part of Magadh Division, and is located on the confluence of two small rivers called Dardha and Yamunaiya.
Magadh division is an administrative geographical unit of Bihar state of India. Gaya is the administrative headquarters of the division. Currently (2005), the division consists Gaya district, Nawada district, Aurangabad district, Jehanabad district, and Arwal district. The current divisional commissioner is Mayank Warwade, an IAS officer of 2001 batch of Bihar cadre. Magadh is home to the Magahi culture. People speak Magahi language here.
Gaya district is one of the thirty-eight districts of the Indian state of Bihar. It was officially established on 3 October 1865. The district has a common boundary with the state of Jharkhand to the south. Gaya city is both the district headquarters and the second-largest city in Bihar.
Daudnagar is a town and the subdivisional headquarter of Daudnagar Subdivision in Aurangabad district in the state of Bihar, India under the Magadh division. Until 1991, there was only one Subdivision in the Aurangabad district: Aurangabad Sadar. On 31 March 1991, one other subdivision, Daudnagar, was created. Daudnagar is a 200-year-old historical city and its living proof is Daudnagar has an old historical fort situated on the eastern bank of the Son River. National Highway NH139 which connects Jharkhand's Palamu district to Patna, passes through the town.
Koilwar or Koelwar is a nagar panchayat (town) and one of the 14 community development block in Bhojpur district in the Indian state of Bihar. As of 2011, the population of Koilwar town was 17,725, in 2,893 households. Koilwar lies on the Arrah-Patna highway (NH-922).
Khatangi is a prominent village in Bihar, India, situated in the Sonbhadra-Bansi-Surajpur block of Arwal district. It is located 96.1 km from Arwal and 114 km from the state capital, Patna. The village is quite old and has a population of about 5,000 people. The literacy rate is 45.56%, with a female literacy rate of 27.3% and a male literacy rate of 62.98%. The people are known for being friendly and hospitable. The economy is primarily agro-based, with agriculture being the main source of income.
National Highway 139 is a national highway in India, which passes through Bihar and Jharkhand. NH-139 connects Medininagar (Daltonganj) in Jharkhand to Phulwari Sharif in Patna, Bihar. This 207-kilometre-long (129 mi) highway passes through Arwal, Daudnagar and Aurangabad.
Obra is a small town 15 km away from the district headquarters on NH-139 (Patna-Aurangabad). As of 2018, Obra has a population of 14,786. In the Obra block, there are 20 Panchayats each with an average of 6 villages. The geographic block is demarcated in the east and south by Daudnagar, Rafiganj, Aurangabad and in the west by Rohtas district. Situated on the confluence of the Punpun and Adri rivers, the rolling topography of the town is typical, spread on the plain of the Son river bed, known for its very fertile land.
Nehru Setu is a railway bridge across the Son River, connecting Dehri-on-Son and Son Nagar, in Bihar.
The state of Bihar has a number of bridges, extending from few metres to a few kilometres. The history of long bridges goes back to the British Empire when the site for the Koilwar bridge was surveyed in 1851. Since then a number of small and large bridges have crept up. Some are even largest of their kind. Mahatma Gandhi Setu, joining Patna and Hajipur was India's longest river bridge from 1982 to 2017.
National Highway 33 is a National Highway in India. It runs from Arwal to Farakka. The highway links Bihar to West Bengal. The highway connects some major cities of Bihar such as Munger and Bhagalpur to the capital city Patna.
Ekwari is a village in the Sahar Block of the Bhojpur district in the Indian state of Bihar. Bhojpur district is a part of the Patna division.
ShaharTelpa Panchayat is a village in Karpi Block in Arwal District in the Indian state of Bihar. It belongs to the Magadh Division. It is located 14 km south from the District headquarters in Arwal. It is 9 km from Karpi and 83 km from the state capital Patna.
Shamshernagar is a large village in the Daudnagar subdivision and block in Aurangabad district, located in Bihar, India. The town falls under the jurisdiction of the Magadh division. Situated on the bank of the Sone River, the National Highway 139 passes through the village. The Indrapuri Barrage canal is a local waterway. Shamshernagar is densely populated. It has adequate infrastructure, including a middle school, an intermediate high school, an additional Primary Health Centre, and a Regional Rural Bank (MBGB). Shamshernagar is an electrified village. and possesses a water tank for its water supply. It shares a border between Aurangabad and Arwal districts. Buses, auto-rickshaws and e-rickshaws provide regional transportation.
Jalpura Tapa is a village and gram panchayat in Koilwar block, Bhojpur district in the Indian state of Bihar. Situated close to the Sone River, it is a large village with more than 12,000 residents. Population-wise it is the largest village and area-wise, it is the 2nd-largest village of Koilwar block.
State Highway 81 (SH-81) is a 83.25 Km long state highway in Bihar, India. It covers two major districts of Bihar. This state highway starts from Sakaddi near Arrah and ends at Nasriganj near Dehri-on-Sone and Daudnagar. SH-81 is also known as the Sakaddi-Sahar-Nasriganj road.
India 
Bihar 
