tantra

What we talk about tantri and tantra in kerala is only just procedures and methodologies of poojas and rituals in temples.

However, Tantra in a wider or broader  sense as a mode of worship and philosophy is a huge subject. 

A lot of practices and literature are availble in this area .

 And that Tantra which is part of Hinduism has many parallels with the practices in Buddhism especially the Vajrayana sect