The 86th Carnatic Infantry were an infantry regiment of the British Indian Army. They could trace their origins to 1794, when they were raised as the 34th Madras Battalion. Their first action was in the Battle of Nagpore in the Fourth Anglo-Mysore War; then the Battle of Kemendine in the First Burmese War. They returned to Burma in 1885, in the Second Burmese War. During World War I they were attached to the 9th (Secunderabad) Division which remained in India, on internal security and training duties.