Shankha Prakshalana washes the entire alimentary tract with water. The alimentary passages are very tortuous and the exit is very narrow like a conch (Shankha). Since this is washed in this Kriya, the ancient sages have given this process an appropriate name – Shankha Prakshalana.
Sit in Kagasana and drink two glasses of lukewarm water strictly with rock salt (sendha namak) in three phases. After every two glasses of water, perform the Asanas like Tadasana, Swing Tadasana, Waist Twisting posture and Bhujangasana Twisting (each asana five times).