Naga Sadhus are considered to be the Purest and the Supreme Most Sadhus in India. The first person to have a bath in Kumbh Mela is a Naga Sadhus because its believed that, they are the purest one & once they get into the water of Kumbh, the water becomes pure and that’s why lot of human being visit Kumbh Mela for bath.
Naga Sadhus are group of shaivite monk or followers of Lord Shiva who live in the Himalayan caves and appear in public during the Kumbh Mela. They carry tridents crowned with human skulls.
They do not like to live near the common people society because of influence of lust, sex, and worldly attractions. They live in Akahara. The Juna Akhara is the oldest and the largest Akhara, which consists of different Sadhus and Sadhavis, including Naga Babas. They smoke marijuana using a Chillum.
The process of becoming a Naga Sadhu is difficult and lengthy. The process of joining the caste of Naga Sadhus takes about six years. During this time new members do not wear anything other than a nappy. After taking the last step in the Kumbh Mela, they also sacrifice the diapers and live only for a lifetime