As per the departmentalized accounting arrangements in government, operational responsibility for accounting, reporting and internal audit function in civil ministries is with the officers of this organisation. These units are headed by the Principal Chief Controller of Accounts (Pr.CCA), Chief Controller of Accounts (CCA) or a Controller of Accounts (CA) in the respective ministries. Under the overall supervision of CGA, they assist the Secretary of the Ministry who is the chief accounting authority in the ministry. The Pr. CCAs / CCAs / CAs discharge their duties and responsibilities through the Principal Accounts Office (Pr. AO) at Ministry’s headquarters and Pay & Accounts Offices (PAOs) at the field formation level. There are currently 358 PAOs located at 87 stations across the country.