Sacred grove is an age-old tradition especially in Kerala and coastal Karnataka where a path of forest is dedicated to local deities and none is allowed to cut plants or to harm animals or any form of life.
Some of the famous temples also have a sacred grove within in the temple compound.
Depending on the main deity, these groves are called as “Sarppakavu, Gulinghankavu, and Bhagavathi Kavu”. In coastal regions, it is generally dedicated to serpent deity and hence known as Sarpakavu (“Sarpam” in Malayalam refers to Serpent) sacred groves dedicated to goddess Durga (Durga kavu) are also common.
The existence of sacred groves in India dates back to ancient pre-agrarian hunter gathering era and their presence has been documented since early 1800's. Believing that trees are the abode of deities and ancestral spirits, many communities set aside sanctified areas of forest and established rules and customs to ensure their protection prohibiting felling trees, killing animals etc. The prevailing belief among devotees is that the presiding deities administer punishment to individuals or entire community in the form of diseases or crop failure. As a result of such restrictions, several endemic and endangered plant and animal species have survived in the sacred groves for so many years.
It has been estimated that total number of sacred groves in the country lie between 100,000 and 150,000 (Malhotra,: 1998)