Rajauli[a] is a tehsil, block and subdivision (sub–district) in Nawada district of Magadh division of the Indian state of Bihar.

The tehsil of Rajauli is located at a distance of about 30 kilometres (19 mi) from Nawada city on National Highway 20 (previously numbered as NH31) and is situated on the bank of Dhanarjay[b] river.

[4] Veer Lorik, the Ahir cowherd hero, is said to have been born in the area and was the reason for the bountiful cultivation in and around Rajauli at one time.

He is a Saiud born at Baragong near Mirzapur, and after some adventures in the west came and sat down here in the midst of wild beasts and the devils worshipped by the Infidels.

After a residence of 25 years he attracted the notice of Kamgar Khan, from who he obtained a considerable grant of lands, which he has brought into cultivation and ornamented with fine plantations.

Singar Peak, named after Sringi Rishi, is ascended by devotees while at the base an annual fair takes place.

[10] The 1873 survey report also mentioned an annual fair at Ektara, Mahabar hill, Satgaon — "Ektâra is a small place of pilgrimage situated in the wild Rajauli Hills at the source of the Dhanarjeh river which flows past Rajauli; here is a very picturesque waterfall and a small rock cell; not far from here I see "rock temples" marked in the Indian Atlas sheet, but my enquiries for them were vain.

[4][11] Dubaur, 15 kilometers south of Rajauli, claims to be the birthplace of Goala (Ahir) Veer Lorik.

O'Malley of the Indian Civil Service wrote that Rajauli, "possesses and excellent system of drainage, which dates back to the time it was a municipality.

[18] A large fort-like building in the center of the town is called 'sangat', meaning "a body of men and women who meet religiously specially in presence of the 'Guru Granth Sahib'".

There are some Samadhis and gates in the complex with the name of Baba Sandbux Das written in Gurmukhi.Francis Buchanan-Hamilton wrote in 1811 that Rajauli "has a Sanget of the followers of Nanak, a large neat–looking place with a tiled roof".

The principal trees were sakhua, paisar, khair, Shisham, parmi, salaiya simar, kendu and peepal.

[27] In December 2008, Bihar Chief Minister Nitish Kumar announced that Rajauli would be made into a Nagar Panchayat.

For over a decade the matter of converting Rajauli into a Nagar Panchayat had been pending; even after government approval, delimitation problems caused delays.

[29] News reports emerged of Rajauli being upgraded into a Nagar Panchayat in December 2020, however administratively the implementation will take a couple of months.

[40] Inspections have revealed basic shortcomings in the situation of some schools located in more rural areas of the block.

[45] The accumulation of rain or flood water over a considerable part of the district makes the land fit for paddy cultivation.

Principal crops are paddy, wheat, gram, maze, arhar, khesari, peas, sugarcane, potatoes, chillies and mung.