Sinhagarjanasana is an Indian translation for Roaring Lion pose. If possible practice this asana during sunrise time facing eastern direction. You can learn this asana as below:

Routine:

• Get in the Vajrasana pose.

• Close the eyes and contemplate about the roaring lion.

• Open the eyes and spread the knees apart.

• Place the palm fingers below the knees.

• Bend a little forward but hold the rest of body as it is.

• Keep the elbows straight.

• Turn the neck little backward with ease so that you may realize some strain there.

• If possible keep the mouth shut.

• Attempt to concentrate over the eyebrow center with open eyes.

• For this you may adopt Shambhavi Mudra.

• Remain conscious towards the physical balance in this pose.

• Inhale deep.

• Hold the air to the limit in the lungs, thereafter open the mouth and bring tongue outside to the maximum.

• You may realize some strain at the facial muscle.

• Slowly exhale out with clear audible sound of 'hhhaaa' from the throat.

• You need to copy the roaring lion.

• After exhaling out completely place the tongue inside and shut the lips close.

• Then breathe again from nose.

• This completes one cycle.

Breathing Patterns:

• Breath deep and slow from the nose 

• Exhale from mouth with 'hhhaaaa' sound.

Consciousness:

• On the coolness and internal throat tension while exhaling and inhaling.
  

Benefits:

• Sweetness in the speech.
• Relief in the nose, ear and throat related problems.
• Provides confidence to gibberish child.
• Provides extrovert quality to introvert child.