9th Royal Deccan Horse

1826: 1st Regiment
Nizam’s Cavalry
2nd Regiment
Nizam’s Cavalry
3rd Regiment
Nizam’s Cavalry
1854: 1st Cavalry
Hyderabad Contingent
2nd Cavalry
Hyderabad Contingent
3nd Cavalry
Hyderabad Contingent
1890: 1st Lancers
Hyderabad Contingent
2nd Lancers
Hyderabad Contingent
3rd Lancers
Hyderabad Contingent
Renumbering into the Indian Army
1903: 20th Deccan Horse

29th Lancers
(Deccan Horse)
disbanded
20th Deccan Horse
29th Lancers
layout layout layout
1922: 20th/29th Horse
1922: 9th Royal Deccan Horse
9th Royal Deccan Horse
1927: The Royal Deccan Horse
(9th Horse)

1947:
to the Indian Army
1950: The Deccan Horse
9 Deccan Horse