II Indian Brigade, Royal Horse Artillery was a brigade[a] of the Royal Horse Artillery formed at the outbreak of World War I.

[7] In practice, the batteries were permanently assigned to the cavalry brigades, viz:[8] In June 1916, 7th (Meerut) Cavalry Brigade (complete with V Battery, RHA) left the division and was reformed for service in Mesopotamia.

Instead, it was held in reserve in case of a breakthrough, although it did send parties to the trenches on several occasions.

They would hold the line, or act as Pioneers; such parties were designated as, for example, the Mhow Battalion.

The British and Canadian units remained in France and the Indian elements were sent to Egypt to help constitute 2nd Mounted Division.