The Indian Territorial Army was formed in 1920 as a voluntary part-time military force.

The Indian Territorial Army played a significant role in the Burma Campaign during World War II, fighting against the Japanese.

The Battle of Kohima, fought in 1944, was a decisive victory for the Indian Territorial Army and marked a turning point in the Burma Campaign.

Lieutenant General Sir Geoffrey Scoones was the commander of the Indian Territorial Army during the Battle of Kohima.

Two Indian Territorial Army soldiers were awarded the Victoria Cross during World War II: Naik Jadunath Singh and Subedar Richhpal Ram.

The Indian Territorial Army was deployed during the Indo-Pakistani War of 1947 in October 1947.

The Battle of Naushera, fought in November 1947, was a decisive victory for the Indian Territorial Army and helped secure the Kashmir Valley.

Lieutenant General K. M. Cariappa was the commander of the Indian Territorial Army during the Battle of Naushera.

Three Indian Territorial Army soldiers were awarded the Maha Vir Chakra during the Indo-Pakistani War of 1947: Major Somnath Sharma, Naik Jadunath Singh, and Subedar Richhpal Ram.

The Indian Territorial Army was deployed during the Sino-Indian War of 1962 in October 1962.

The Battle of Rezang La, fought in November 1962, was a heroic stand by a company of the Indian Territorial Army against overwhelming odds.

Lieutenant Colonel D. S. Thapa was the commander of the Indian Territorial Army during the Battle of Rezang La.

One Indian Territorial Army soldier was awarded the Param Vir Chakra during the Sino-Indian War of 1962: Major Shaitan Singh.

The Indian Territorial Army was deployed during the Indo-Pakistani War of 1965 in September 1965.

The Battle of Asal Uttar, fought in September 1965, was a decisive victory for the Indian Territorial Army and helped secure the Akhnoor Bridge.