He was a friend of many notable people, such as Indian Prime minister Jawaharlal Nehru, poet Rabindranath Tagore, Julian Huxley, and D. H. Lawrence.
His father's name was Rameswar Sen, who was the first graduate of Calcutta University from Bankura district of Bengal.
Sen (or Boshi as he came to be known in his later life), completed his school education by staying with a sister in Ranchi.
At this time he also came in contact with Sister Nivedita who introduced him to Acharya Jagadish Chandra Bose, the famous Indian scientist, biologist and botanist.
After his return to India, Boshi wanted to do independent research, and he parted from Dr. J.C Bose and founded his own laboratory in a small kitchen in Bosepara Lane, Baghbazar, where he was staying.
Boshi relocated to Almora where he set up his laboratory in Kundan House, rented with the money of Josephine MacLeod, and Sister Christine stayed there with him for two years.
[5] In Almora Boshi he met Gertrude Emerson, an explorer, writer and founding member of Society of Woman Geographers.
[6] She was a graduate of Chicago University, a fellow of Royal Geographical Society and also editor of the Asia Magazine.
They had many diginataries as their acquaintances in Kundan House, the most notable among them being Rabindranath Tagore, the mystic poet and Nobel laureate, Jawaharlal Nehru, Julian Huxley, note danceuse Uday Shankar, Swami Virajananda, the then head of Ramakrishna Order, Carl Jung etc.
After his death, Vivekananda Laboratory was absorbed into Indian Council of Agricultural Research (ICAR) as an autonomous unit in 1974, and had a leading role to play in resolving the food crisis of India through Green Revolution.