The DES, Manipur is responsible for providing the statistical data on diverse socio-economic activities of the state which are being collected, processed and published from time to time. While the DES, Manipur is responsible for collecting primary data directly through its own functionaries, a major part of the statistical information i.e., secondary data, is being mobilized with the help of other Departments.

The main functions of the DES can broadly be classified as follows:-

• Collection, Compilation, Processing, Analysis and Presentation of data on various socio-economic aspects of the State in a systematic manner and dissemination of the same through periodic publications.
• Conducting sample surveys and other ad-hoc field enquiries etc., on various aspects and problems of socio-economic development.
• Coordinating the statistical activities of various departments of the State Government and rendering them technical advisory services.
• Organization of post-recruitment training to Statistical Personnel.
• Liaison with the Statistical Organizations of the Government of India and of other State Governments.
• Assisting in the evolution of a sound statistical system.
• Standardization of all questionnaires/schedules/formats etc. meant for data collection.
• Ensuring elimination or otherwise minimization of duplications of statistical work among the departments and
• Ensuring adoption of uniform concepts, definitions and procedures by providing consultancy and advisory support to other agencies/ departments.