The Defence Ministry consists of 4 departments: 1) Departent of Defence 2) Department of Defence Production 3) Department of Defence Research and Development 4) Department of Ex-Serviceman Welfare
Western Commnad (Headquarter-Chandigarh) Northern Command (Headquarter-Udhampur) Army Training Command (Headquarter-Shimla) South Western Command (Headquarter-Jaipur) Eastern Command (Headquarter-Kolkata) Southern Command (Headquarter-Pune) Central Command (Headquarter-Lucknow) Each Command of Indian Army is commanded by a General Officer Commanding in Chief of the rank of Lieutenant General.
Eastern Command (Headquarters-Visakhapatnam) Western Command (Headquarters-Mumbai) Southern Command (Headquarters-Kochi) The Indian Vany has three Naval Commands, commanded by Flag Officers Commanding-in-Chief of the rank of Vice Admiral.
Indian Air Force has seven commands ( 5 Operational and 2 Functional Commands): Operational Commands Eastern Air Command (Headquarters-Shillong) South-Western Air Command (Headquarters-Gandhinagar) Southern Air Command (Headquarters-Tiruvananthpuram) Western Air Command (Headquarters-New Delhi) Central Air Command (Headquarters-Allahabad) Functional Commands Maintenance Command (Headquarters-Nagpur) Training Command (Headquarters-Bangalore)
The ranks in Indian Army is: General Lieutenant General Major General Brigadier Colonel Lieutenant Colonel Major Captain Lieutenant
The ranks in Indian Air Force is: Air Chief Marshal Air Marshal Air Vice Marshal Air Commodore Group Captain Wing Commander Squadron Leader Flight Lieutenant Flying Officer