Dumraon is a town and nagar parishad corresponding community development block in Buxar district in the Indian state of Bihar. Dumraon is one of Bihar's oldest municipalities and one of India's oldest princely states also known as Dumraon Raj. It is located 1.5 km south of National Highway (NH) 84 (Ara-Buxar Highway), 20 kilometres (12 mi)north from NH-30 (Patna-Ara-Mohania) and 80 kilometres (50 mi) from NH-2 (Delhi- Kolkata). It is known for its Sinhora. Sights include Jangali Shiv ka Mandir, Bihariji Ka Mandir, Dumrejani mai ka Mandir, Maa Dakshini bhavani ji ka Mandir and Kaliji Ka Mandir. The famous villages near by Dumraon are Purana Bhojpur, Amsari, Baisegaon (Fafadar), Kanjharua, Kopwaon, Koran Sarai, Nandan, Chaugain, Simari, Ariaon & Sowan.udianganj chhatanawar '