This is the fish pose. Sit in padmasana. Now lie back down until your back is resting on the floor. On an exhale arch your back. Now rest the crown of the head on the floor while concentrating on lifting the neck and back off the floor. Raise the hands and stretch them out and then rest them above your head on the floor. Stay here for thirty seconds or more, breathing easily. Then move out of the pose.
Precaution: Heart disease, peptic ulcers, hernia, back conditions or any serious illness should not practice this asana. Pregnant women should also not attempt it.
Benefits: Dorsal region is fully extended in this posture and the chest is well expanded. Thyroids benefit. Pelvic joints become elastic. Stretches the intestines and abdominal organs. Remove constipation. Relieves inflamed and bleeding piles. Asthma and bronchitis. Alleviating backache. Thymus gland, boosting the immune system.