Subramaniyaswami Temple, Marudamalai is considered as the Seventh House of Lord Murugan is a popular hill temple dedicated to Hindu god Murugan, situated near Coimbatore, Tamil Nadu, India. The origin of the temple is rooted in legendary antiquity and dates back to the age of Surapadama, the demon destroyed by Lord Subramanya referred in SKANDAPURNAM. The inscriptions found in Thirumuruganathaswami Temple, Thirumurganpoondi places the origin of the temple in the 12th century A.D. according to Perur puranam. Today the eco system of Maruthamalai is in very degradable state results of waste dumps, deforestation, pollution and encroachment. Unless urgent measures taken, the entire eco system will be in danger of degradation. This report through light on the environmental problems faced today and possible remedial measures. To know the various problems, we have conducted Environmental Impact Assessment (EIA) study and Environmental Management Plan (EMP) is prepared. The present study aims to assess the present status of the existing ecosystem in the Maruthamalai hill, to have a comprehensive checklist of flora and fauna and suggest suitable conservation measures.