Which of the following is not an attached office of the Ministry of Labour, Government of India?

Under the Ministry of Labour and Employment, Government of India, the Office of the Chief Labour Commissioner (Central), the Labour Bureau (Shimla/Chandigarh), and the Directorate General Factory Advice Service and Labour Institutes (DGFASLI, Mumbai) are 'Attached Offices'. The V.V. Giri National Labour Institute (VVGNLI, Noida) is an 'Autonomous Body' (registered as an autonomous society), not an attached office.