Danapur (also known as Dinapur) is a satellite town of Patna in Bihar state of India. The population was 182,241 at the 2011 India Census. It is part of the Patna Metropolitan Region. It was constituted as a municipality in 1887. Danapur is also a shelter and hatchery for the migrating Siberian cranes, locally called Janhgil. They visit every year during the monsoon season for breeding and leave this place before the start of the winter season. The Sub-Area Headquarters of Bihar and Jharkhand is situated in the army cantonment here. Flagstaff ghat on the Ganges at Dinapur, Patna, 1859 is one of the oldest ghats. Gurdwara Handi Sahib, a gurdwara of Guru Tegh Bahadur, is a pilgrimage place for Sikhs. Naulakha temple and various historical buildings of British rule are places of interest. It is located on the bank of the River Sone which merges with River Ganges at Digha a few kilometers from Danapur. Danapur is well connected by rail and road. It is connected to most of the major cities in India by the railway network. Danapur Station (Station Code DNR) is the main railway station of the area. It is also the divisional headquarter of the Danapur Division of the East Central Railway. The town is located in the Mughalsarai – Howrah main line. National Highway no. 30 links the town to other cities of Bihar. Patna Airport is the nearest airport.