The two main wings of the Labour Bureau, an attached office of the Ministry of Labour & Employment are at Chandigarh and Shimla with four Regional Offices at Ahmedabad, Kanpur, Kolkata and Chennai and a Sub-Regional Office at Mumbai. The organisation is headed by Director General, a Higher Administrative Grade Officer from the Indian Economic Service (IES). He is assisted by a team of dedicated professionals from the Indian Economic Service and the Indian Statistical Service. The Regional Offices mainly attend to the audit of prices used for constructing the Consumer Price Index Numbers for Industrial Workers so as to ensure the flow of a reliable price data. Kanpur Regional office has also been entrusted with the work of organising training programmes aimed at improving the quality of data sent by State Govt. agencies as a bye-product of administration of various labour laws.