Naga Sadhus are a particular group of Shaivite saints who reside in the Himalayan Caves and come to visit the civilization only during the Kumbh Mela. This is the only event when these ascetic saints can be seen amongst the general Indian population.The Naga Sadhus renounce the materialistic world and practice celibacy to escape from the cycle of birth and death and to attend salvation. As they belong to the Shaivite sect, they have matted locks of hair and their bodies are covered in ash like Lord Shiva.The Naga Sadhus were founded by Dattatreya during ancient times such that the date of the foundation is lost. The ancient period was perhaps an age when humans never stressed the importance of time. Shankaracharya was the first one to organize the Nagas to protect Sanatam Dharma.