What is agnisar kriya?

Agni Sara is a cleansing practice - agni means fire, and in this practice the internal fire is stoked, helping to heat up the body from within in order to stimulate digestion and detoxify the bodily systems. Sukhasana or 'Easy sitting' pose is a good position for this practice, although many other poses are also appropriate. Then, with that body awareness, move into a more suitable position where the spine can stretch. Agni Sara can also be done standing, with the feet spread wide apart, knees bent in an easy standing-squat and the hands resting on the thighs for support. Whichever position you choose, remember to work towards an erect spine rather than a rounded or hunched one...

you can read complete article on soulcurrymagazinedotcom, from where i get to know.

http://soulcurrymagazine.com/sc/agni-sara-yogic-cleansing.html

Keep fit n fine

kittu