Sit in any meditative posture either Sukhasana, Padmasana etc. Spine should be upright
Using the right thumb, block the right nostril. Inhale through the left nostril for 4 counts. Now block both nostrils and hold the breath for 16 counts. (Cardiac, Blood pressure patients and pregnant women should not hold their breath while doing this pranayama just keep inhaling and exhaling.)Keep the left nostril blocked and release the right nostril. Exhale through the right nostril for 8 counts. Now inhale through the right nostril for 4 counts. Block both the nostrils and hold the breath for 16 counts. Keep the right nostril blocked and release the left nostril. Exhale for 8 counts from the left nostril. This completes one single round.Do 2 rounds initially and then increase the number