The Deputy Chiefs of the Army Staff (DCOAS) are Principal Staff Officers (PSOs) of the Indian Army, and are three-star rank appointments held by Lieutenant Generals. Currently the rank of DCOAS has three divisions:- Capability Development and Sustenance, Information Systems & Training and Strategy.
The position of Deputy Chief of Army Staff (DCOAS) was first established on 27 January 1959 as the second-in-command of the Indian Army after the Chief of Army Staff. It was equivalent to an Army Commander (GOC-in-C). Lieutenant General Mohinder Singh Wadalia became the first DCOAS.
In January 1965, the position of Vice Chief of the Army Staff replaced the DCOAS in the role of second-in-command, with the DCOAS becoming a Principal Staff Officer (PSO) position, replacing the former position of Chief of the General Staff.
The office of DCOAS was eventually bifurcated into :- Planning and Systems and Training and Coordination. The division of Training and Coordination was later renamed to Information Systems and Training.
In April 2021, the appointment of Deputy Chief (Planning and Systems) was amended to Deputy Chief (Capability Development and Sustenance) and Deputy Chief (Information Systems and Training) to Deputy Chief (Information Systems and Coordination). A third post and new post of DCOAS Strategy was created.
In 2025, the appointment of Deputy Chief (Information Systems and Coordination) was amended to Deputy Chief (Information Systems and Training)
The DCOAS rank at No. 24 on the Indian order of precedence, along with Vice-Admirals of the Indian Navy and Air Marshals of the Indian Air Force. Since they should not draw equivalent or more salary than the next higher level, the remuneration is capped at â¹2,24,000.
Currently, there are three DCOAS at Army HQ:
This officer takes care of all capital procurement. DG Infantry, DG Armoured, ADG Mechanised Infantry, DG Artillery, DG Air Defence and DG Capability Development report come under this office.
The DG Signals, DG Information Systems and DG Staff Duty report to this office.
The Director General of Military Operations (DGMO), DG Military Intelligence, DG Operation Logistics and DG Information Warfare report to this office.