The Aghoris are distinct from other Hindu sects and Sadu’s (priests) as a result of their alcoholic and cannibalistic ceremonies. Skulls and other human bones are obtained from the cremation grounds and used due to them having life-force which they believe can be harnessed for ritual purposes.
They also allegedly pull bodies from the river Ganges, which are then eaten. Renowned for using skulls as drinking vessels and for covering themselves in human ash, they are also known for their excessive consumption of charras, a thick black hash resin. Here’s a photo I took of one of them drinking whisky from a skull.