Is the military service system in India militarized or compulsory?

Implement the recruitment system; Service life: soldier 17 years, sergeant 2 1 ~ 28 years, junior noncommissioned officer (naval and air force warrant officer) 26 ~ 33 years. The maximum service age of officers at all levels: 60 for general officers, 55 for school officers, 50 for junior officers and 50 for junior noncommissioned officers (naval and air force warrant officers).