In the present paper efforts have been made by the authors to study the changes in land use and land cover in Tripura using LANDSAT images of two different dates and to see how well data obtained help in the study of geographical phenomena with special reference to land use and land cover. The methodology for land-use mapping and limitations of LANDSAT data have been described in detail. The LANDSAT computer compatible tapes (CCTs) were analysed on the sophisticated interactive Multispectral Data Analysis System (MDAS) with the help of training sets of each category collected during field visits. Ninety per cent accuracy of these categories has been achieved when compared with existing data compiled on ground surveys by the working plan of the Division of Forest Department. The area of each land-use category was also calculated for monitoring land-use changes.