29th Lancers (Deccan Horse)
- 1790 raised as Asif Sah's Irregular Cavalry under the Colours of the Nizam of Hyderabad in Berar
- 1801 became the Nizam's Contingent
- 1816 became 2nd Reformed Horse
- 1826 became 2nd Regiment, Nizam's Cavalry
- 1854 became the 2nd Cavalry, Hyderabad Contingent
- 1890 became the 2nd Lancers, Hyderabad Contingent
- 1903 became the 29th Lancers (Deccan Horse)
- 1922 amalgamated with the 20th Deccan Horse to become the Royal Deccan Horse (9th Horse)
- 1947 allocated to India on Partition
- 1950 became The Deccan Horse (9 Horse)
First World War
Regimental History: The Royal Deccan Horse In The Great War by Lieutenant-Colonel E. Tennant 1939. Available at the British Library, and in a reprint edition, which in turn is available as an online book on the Ancestry owned pay website fold3, see below.
- Deccan Horse indiapicks.com
- 9th Royal Deccan Horse Wikipedi
- "Unseen, unsung, unheralded: the monument of the fallen" by Serish Nanisetti July 14, 2016 The Hindu, Hyderabad. The Second Lancers WW1 Memorial near Golconda fort, Hyderabad.
- Badlu Singh cwgc.org, now an archived webpage. Badlu Singh was a Rissaldar in the 14th Murray's Jat Lancers, attached to the 29th Lancers (Deccan Horse). He died in Palestine in an act of supreme courage for which he was awarded a posthumous Victoria Cross. More details are in a Great War Forum post. 
- Hyderabad Contingent Standard fotw.fivestarflags.com
Historical books online
- History of the Thirtieth Lancers Gordons Horse by Major E A W Stotherd 1911 is available as a pdf to download, Digital Library of India, or as a mirror edition on Archive.org. This regiment was previously called the 4th Lancers, Hyderabad Contingent. The preface states that a great deal of information will be found about the other three regiments of the Hyderabad Contingent Cavalry, as in many despatches they seem to have been regarded as one large corps.
- The Royal Deccan Horse In The Great War is available in a reprint edition, which in turn is available as an online book on the Ancestry owned pay website fold3 (located in World War II/Military Books/Britain, under letter T).