Method
Interlock the fingers of both the hands and keep the thumb of the left hand vertically straight and encircle it with the thumb and the index finger of the right hand.
Specialty
It generates heat in our body. Take milk, ghee, more water and fruit juices in addition to practice of this mudra for much benefits.
Time Duration
Practice it any time you want. But don’t practice it a lot as it produces heat in the body. It can cause sweating even in winter if you practice it longer
Benefits
It stops production of phlegm and gives power to lungs
It cures severe cold and bronchial infection
It invigorates the body
http://www.indiastudychannel.com/resources/94906-Benifits-Mudras.aspx
