8th Lancers
The 8th Lancers was a cavalry regiment of the Bengal Army (1846-1895) and the British Indian Army until 1921 when it was amalgamated 5th Cavalry regiment to form the 3rd Cavalry regiment. Origin and history 
The 8th Lancers were the last cavalry regiment to be established before the Indian Rebellion of 1857, being raised by Captain W. H. Ryves at Sultanpore in 1846. The regiment served in Peshawar during 1857 rebellion and served in the Second Anglo-Afghan War. They were issued with lances in 1899 to become the 8th Bengal Lancers, later changed to the 8th Lancers. As the 8th Cavalry the regiment spent World War I on internal security duties in India although it was sent to Palestine in 1920. On returning to India in 1921 they were amalgamated with the 5th Cavalry and to form the 3rd Cavalry regiment. Titles 
Like all regiments of the British Indian Army, the 8th Lancers underwent many name changes in the various reorganisations. They are listed below. 1846 17th Irregular Cavalry
1847 18th Irregular Cavalry
1861 8th Regiment of Bengal Cavalry
1900 8th Regiment of Bengal Lancers
1901 8th Bengal Lancers
1903 8th Lancers
1904 8th Cavalry
1922 3rd Cavalry following amalgamation with the 5th Cavalry regiment

References 
Kempton, C (1996). A Register of Titles of the Units of the H.E.I.C. & Indian Armies 1666-1947. Bristol: British Empire & Commonwealth Museum. Gaylor, J (1992). Sons of John Company: The Indian and Pakistan Armies 1903- 1991. Stroud: Spellmount Publishers Ltd. 

Military units and formations established in 1846
British Indian Army cavalry regiments
Honourable East India Company regiments
Indian World War I regiments
1846 establishments in British India