ROLE The yard undertakes refit of Indian Naval ships and submarines based at Mumbai. The overall functions include:- Refit of Ships and Submarines Repairs and maintenance support to operational ships. Arranging dry-docking of ships in commercial docks when Naval Drydocks are not available. Berthing and movement of ships. Repairs to repairable inventory of Materials Organisation, Mumbai Maintenance support to outlying units of Western Naval Command (WNC) Meeting any special requirements of WNC and National Headquarters (NHQ). Upkeep of own plant machinary and building and marine assets. Providing shore based services to ships. Maintenance of yard services and crafts. Plan and execute progressive improvements in maintenance facilities. Use facilities, such as laboratory and non-destructive testing for analysis and materials and the development of equipment components of stores. Utilise the Dockyard's spare capacity profitably, by undertaking suitable work for non-naval vessels, for other Government Departments as well as for public and private enterprise on suitable payments. Train apprentices in the Dockyard Apprentice School (DAS) as per the statutory regulations enforced by the Central and State Government. Maintenance / upkeeping of Naval Civilian Colony at Mumbai. Maintenance / upkeeping of Naval Civilian Hospitals. Own security and fire fighting service.