Sirumalai is a dense forest region with a moderate climate throughout the year. With an altitude of 1600 metres above sea level, it contains diversified flora and fauna. The hill has 18 hairpin bends. On the 18th bend is a church and a view point of Dindigul city and the "Dindigul Rock Fort". The hill contains a small waterfall as well. The famous Sirumalai banana is slowly disappearing from disease, which scientists have been unable to prevent.Man-made fires on the hills have destroyed medicinal plants and threatened the fauna habitat. Fires are often set to promote vegetation growth used for animal fodder, clear land for cultivation, or improve access to timber