Fires are one of the most common disasters occurring in forests, which adversely affect forest resources, biodiversity and endanger lives. The present study area, Peechi-Vazhani Wildlife Sanctuary is also prone to forest fires, where a total of 22 forest fires occurred during the last decade. The aim of this study is to demarcate the fire risk zones in Peechi-Vazhani Wildlife Sanctuary using geospatial techniques. Factors such as land-cover type, slope, distance from settlement, distance from road, and elevation are selected for the study. The Fire Risk Index method is used to demarcate the risk zones. The area of the final map is grouped into five risk zones viz. very low, low, moderate, high, and very high. The final fire risk zone map is validated with the fire incidence points collected from the records of the Forest Survey of India, which shows good reliability. This study shows that majority of the forest fire incidences in this sanctuary are of anthropogenic origin. From the study it is clear that the methodology is sound and can be applied to other areas with similar conditions.