Padmasana or Siddhasana is a good place to start. Using the right thumb, close the right nostril. Inhale (Puraka) steadily from the left nostril until three Oms are counted.
As if you were painting the Prana and the ambient air together. You will really feel like you are drawing Prana when you work. Then, using the right hand's little and ring fingers, cover the left nostril as well.
Hold your breath for a total of 12 Oms. Down to the Muladhara Chakra, send the present. Feel as if a nerve current is striking the Muladhara Chakra, causing Kundalini to awaken. Remove the right thumb and count 6 Oms while exhaling through the right nostril.
As before, inhale through the right nostril, hold, and exhale through the left nostril. Pranayama is made up of the six processes mentioned above. Do 6 Pranayamas in the morning and 6 in the evening to begin.
Increase it gradually to 20 Pranayamas per sitting. Inhalation, absorption, and exhalation have a 1:4:2 scale. The period of Kumbhaka should be steadily increased.
Do the Kumbhaka for as long as you can safely do it. Do not be hurried.
Patience is needed. Contract the anus and even do Mula Bandha. Concentrate on the Chakras and Kundalini meditation. This is the most crucial part of the operation. Deep concentration is important for Kundalini awakening in this Pranayama. If the level of focus is high and the practice is done on a daily basis, Kundalini will awaken easily.
This practice cleanses the Nadis, calms the wandering mind, increases digestion and circulation, assists Brahmacharya, and awakens Kundalini. Many of the body's impurities are expelled.
You may also want to read more about Pranayama and Holistic Healing here.