Information is a resource, which together with physical, economical, technical and human resource is a must for national development. Sustainable development, which has evolved as the goal for human welfare in recent times, is rooted in the availability of right information to the right person at the right place and at the right time. The need for information arises at all levels, from that of senior decision-makers, at the national and international levels to the grass roots and individual levels. Environmentally sound decisions, which are a must for achieving sustainable development, are not possible in an information vacuum. Environmental information is, therefore, of vital importance. Realising the importance of environmental information, an Environmental Information System (ENVIS) has been established by the Ministry of Environment and Forests in 1982 to provide information to decision-makers, policy- planners, scientists, etc. all over the country. Dissemination of information to the users is the most vital component in the whole system for providing the users satisfaction. ENVIS is a decentralised network information system consisting of Focal Point in the Ministry coordinating the activities of a chain of 24 subject specific centres, known as ENVIS Centres located in various prestigious institutions/organisations all over the country. The purpose of the ENVIS Centre is to cater to the needs of the people do not have access to highly equipped libraries and network systems. ENVIS Centre is building up a good collection of books, reports and journals in the particular subject area of environment. Establishment of linkages with all information sources in the particular subject of environment. Repsonding to users queries. Establishment of a data Bank on some selected parameters relating to the subject area. Identification of gaps in the subject area and action to fill these gaps.Bringing out newsletter/publications in the subject area for wide dissemination.