Early life

Swami Prajnanapada was born as Yogeshwar Chattopadhyay on 8 February 1891 at Chinsurah, near Kolkata(then Calcutta), in West Bengal, India. He was the fourth of 5 children. His parents and eldest brothers died in an epidemic when he was young. His elder brother Lakshmi Narain took care of his education. In 1916 he graduated from Srirampur, a town near Kolkata. In 1918 he graduated with a gold medal with a master's degree in Physics from Calcutta University. Between 1918 and 1920 he taught at TNG College, Chagalpur and B.N.College, Patna. In 1920 he joined the non-cooperation against the British Raj, called by the Indian national congress.

Spiritual awakening

In 1921 he met Niralamba Swami who later became his Guru. Though he was increasingly turning to spirituality he continued teaching at various universities in Bengal and Bihar. In 1923 he was invited to lecture at Kashi Vidyapith, one of the most famous colleges of Banaras Hindu University. In 1925 he took sannyasa and wandered in the Himalayas. His brother persuaded him to return assuring him that he could carry on his spiritual quest at home. He returned to Kashi Vidyapith. In the same year a daughter was born, named Chinmayee.

In 1930 he gave up his teaching post and left Varanasi for good, at the behest of Niralamba Swami who requested him to take charge of Channa Ashram after his death.

Final years

Swami Prajnanpada had a congenital heart condition which deteriorated with passage of time partly due to the intensive psychoanalysis sessions he conducted for his disciples. He had his first serious heart attack in 1972. In 1974 he died at the Ranchi Ashram.