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 & Coordination and Strategy.

[4] The office of DCOAS was eventually bifurcated into :- Planning and Systems and Training and Coordination.

[6] Since they should not draw equivalent or more salary than the next higher level, the remuneration is capped at ₹2,24,000.

[7][8] Currently, there are three DCOAS at Army HQ:[9] This officer takes care of all capital procurement.