Tighten your throat muscles. Firmly press the head against the stomach. At the end of Puraka and the beginning of Kumbhaka, this Bandha is performed. 

This Bandha is usually performed only during Kumbhaka.

The nectar that exudes from the Sahasrara Chakra through the hole in the palate is consumed by the gastric fire, which is located in the Nabhi area. 

This Bandha keeps the nectar from being eaten in this manner.

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