Across North India, one will come across various Akharas that act as monasteries and training ground for these Naga Sadhus, where one can witness them after Kumbh, but this access too are limited.
The sanyasi of all sects, from North Bharat to Godavari River are classiﬁed into 13 Sanghas. The 13 Sanghas means 13 Akhadas based on their beliefs and presiding god.
5. Juna (Bhairav)
8. Bada Udasin Panchayati
9. Naya Udasin
The Naga Sadhus do such extreme austerities for not only getting special powers rather for escaping out from the cycle of 84 Lakhs different Yonis of death and rebirth also. They are highly energetic military of Hindus for safeguarding Hinduism, but they are never threat to any other people or faiths. They are the true devotee of Lord Shiva, with no fear of death and life.