Sit on Padmasana or Siddhasana. Close the eyes. Keep the left nostril closed with your right ring and little fingers. Slowly inhale without making any sound as long as you can do it comfortably through the right nostril. Then close the right nostril with your right thumb and retain the breath firmly pressing the chin against the chest (Jalandhara Bandha). Hold on the breath till perspiration oozes from the tips of the nails and roots of the hairs (hair follicles). This point cannot be reached at the very outset. You will have to increase the period of Kumbhaka gradually. This is the limit of the sphere of practice of Surya Bheda Kumbhaka. Then exhale very slowly without making any sound through the left nostril by closing the right nostril with the thumb. Repeat OM mentally with Bhava and meaning during inhalation, retention and exhalation. Exhale after purifying the skull by forcing the breath up.
This Pranayama should again and again be performed, as it purifies the brain and destroys the intestinal worms and diseases arising from excess of wind (Vayu). This removes the four kinds of evils caused by Vayu and cures Vata or rheumatism. It cures rhinitis, cephalalgia and various sorts of neuralgia. The worms that are found in the frontal sinuses are removed. It destroys decay and death, awakens Kundalini Sakti and increases the bodily fire.