Contortion Wiki

भैरवासन (Sanskrit, Bhairavasana, “Formidable pose”)

सुप्त भैरवासन (Sanskrit, Supta Bhairavasana, “Reclining Formidable pose”)

अण्कुशआसन (Sanskrit, Ankusasana, “Elephant goad pose”)

A frontbend while lying down on the back, with a single foot behind the head.

Kala Bhairavasana is a raised variant. Chakorasana is a handstand variant.

https://en.wikipedia.org/wiki/Bhairavasana