Land use/land cover is an important component of understanding the interactions of human activities with the environment, which is required for monitoring. Here, land use/land cover around the Paradip port area was studied through geographical information system (GIS) and remote sensing. The classification was performed using different satellite images, such as Landsat-4 MSS, IRS-1A LISS-II, IRS-P6 LISS-III, and Cartosat-1 PAN, and change detection was studied from 1985 to 2011. The results revealed that approximately 32% of the dense mangrove area has been converted to aquaculture land (8%), sandy areas (5%), scrubland (5%), sparse mangroves (1%), and marshy/swampy land (2%). Rapid changes occurred between 2005 and 2011 because the driving forces were either biophysical or socioeconomic. Biophysical drivers include the natural environment and topographical resources. Socioeconomic drivers include demographic, social, industrial, and technological changes. The driving forces responsible for this phenomenon are overexploitation of fuel, wood, timber harvest, domestic grazing, nontimber forest products, reclamation for agriculture and aquaculture, and the development of rural settlements. Thus, it is vital to focus on the driving factors, and a change detection study is necessary to understand the reasons for the decline in mangrove forests for the sustenance of coastal ecosystems.