The Territorial Army (TA) of India is an auxiliary military organization of part-time volunteers that provides support services to the Indian Army. It is composed of officers, junior commissioned officers, non-commissioned officers, and other personnel holding ranks the same as in the Indian Army, who also have civilian occupations). The role of TA is to "relieve the regular army from static duties and assist civil administration in dealing with natural calamities and maintenance of essential services in situations where life of the communities is affected or the security of the country is threatened and to provide units for the regular army as and when required".

The TA initially had various types of units, such as Armoured Regiment (TA), Infantry Battalion (TA), Air Defence (TA), Medical Regiment (TA), Engineers Field Park Coy (TA), Signal Regiment (TA), EME Workshop (TA), Coast Battery (TA), ASC GT Coy (TA), ASC Compo Pl (TA), and AMC Field Ambulances (TA). By 1972, these units, except infantry battalions, were either disbanded or became part of the regular army). In 2018, the TA began accepting women in officer and other ranks).

The Territorial Army Act 1948 states that the TA is an integral part of the Indian Army, whose composition is defined in the Part I of the Defence Services Regulations. Part-time TA personnel may fall within the definition of regular army when attached to a unit. A TA officer can get a permanent commission based on the time period served and the vacancies available. The eligibility criteria for joining the TA include age limit, nationality, and other criteria. The motto of the Territorial Army of India is Savdhani Va Shoorta (Vigilance and Valour) .