Swami Nirmalananda was born in 1920, as the eldest son of a Nair couple in Alappuzha, Kerala. He was spiritually inclined and used to frequently visit temples and attend spiritual discourses. When he was seven years old, he met Swami Vimalananda of Baranikavu. He began is study in Yoga, Ayurveda and Vedanta under that Swamiji and took sannyas Diksha when he was just 17 years old.
Since then Swami lived a life of solitude in spiritual practice and penance at the Baranikavu ashram. He would frequently go into periods of silence with out food, some of which extended to three years. During these periods Swamiji sustained his life with just pranayama and juices of sundried amla.
Though he is 96, his energy levels are of a man in his 30s. He still lives in solitude and very rarely meets people. He has a selected band of disciples, who he trains to impart the knowledge and experience he has received from within.