In an unprecedented move, the service chiefs have decided to be present before the Parliament's Public Accounts Committee (PAC).They said everyone is accountable to the Parliament. The Army and the Air Force Chief will be present before the PAC on Wednesday in connection with alleged irregularities in the canteen stores supplies. The Navy would be represented by Vice Chief D K Deewan, as chief Nirmal Verma is in Indonesia on a pre-scheduled four-day visit which began on Sunday.The Army chief had made it clear on Monday that he will be following the directives of the Defence Ministry in this respect and appear before the PAC on Wednesday. Talking to reporters on the sidelines of an NCC function in New Delhi on Tuesday ,the IAF Chief P.V. Naik said ,every one is responsible to Parliament and no body is exempt from it. Air chief Marshal, however, said, the armed forces have decided to stick to their stand that their Unit Run Canteens are beyond the purview of the PAC.He said the forces still maintain that URC is beyond their purview and have given replies to PAC on these lines.AIR correspondent reports, the Defence Ministry, which received the communication from PAC had advised the service chiefs to appear before the PAC to underline the committee's immense significance. Usually the Defence Secretary attends meetings of the Parliamentary Committees along with Vice Chiefs of the Services.