Daulat Singh was an eminent ruling Maharaja of the princely state of Idar from the year 1911 to 1931. He was born on 12th May 1875, to father Bhupal Singh, Maharaja of the state of Jodhpur. Daulat Singh was later adopted by his uncle Pratap Singh, Maharaja of the princely state of Idar. He succeeded his uncle and ascended the throne or gadi of Idar, after Lieutenant General Maharaja Sri Pratap Singh Sahib Bahadur of Idar, GCB, GCSI, GCVO, KIH abdicated in his favour in the year 1911.

Daulat Singh was honoured with the Knight Commander of the Order of the Star of India (KCSI) in the 1920 New Year Honours. Maharaja Daulat Singh of the princely state of Idar died on 14th April 1931. He was succeeded by Himmat Singh, who was his eldest son.

Titles of Daulat Singh
Maharaja Daulat Singh held numerous titles and styles through out his reign over the princely state of Idar. These are mentioned below-
* Rajkumar Sri Daulat Singh (1875- 1899)
* Raj Sri Daulat Singh (1899- 1902)
* Yuvaraja Sri Maharajkumar Daulat Singh Sahib (1902- 1911)
* His Highness Maharajadhiraja Maharaja Sri Daulat Singh Sahib Bahadur, Maharaja of Idar (1911- 1914)
* Major His Highness Maharajadhiraja Maharaja Sri Daulat Singh Sahib Bahadur, Maharaja of Idar (1914- 1918)
* Lieutenant-Colonel His Highness Maharajadhiraja Maharaja Sri Daulat Singh Sahib Bahadur, Maharaja of Idar (1918- 1920)
* Lieutenant-Colonel His Highness Maharajadhiraja Maharaja Sri Sir Daulat Singh Sahib Bahadur, Maharaja of Idar, KCSI (1920- 1926)
* Colonel His Highness Maharajadhiraja Maharaja Sri Sir Daulat Singh Sahib Bahadur, Maharaja of Idar, KCSI (1926- 1931)

Honours of Daulat Singh
Maharaja Sir Daulat Singh of princely state of Idar achieved several political honours through out his extensive rule under the British East India Company. The most prestigious honour he received was being appointed as a Knight Commander of the Order of the Star of India (KCSI) in the year 1920. Sir Daulat Singh of Idar was honoured many times, which are discussed as follows-
* India Medal w/ Tirah Clasp (1898)
* China War Medal (1900)
* King Edward VII Coronation Medal (1902); w/ Delhi Durbar Bar (1903)
* King George V Coronation Medal w/Delhi Durbar Bar (1911)
* 1914- 1915 Star (1918)
* British War Medal (1918)
* Allied Victory Medal (1918)
* Knight Commander of the Order of the Star of India- KCSI (1920)