Ratan Lal Brahmachary

As a scientist Ratan Lal Brahmachary with George Adamson in Kora National Park, Kenya. Following a decade of work on relativistic field theory, astrophysist Ratan Lal Brahmachary joined the Indian Statistical Institute in 1957, and there he was professor in the Biology Department and a veteran tiger researcher. He did his extensive research in Marine Biological Labs in Italy, France, and other institutes in Europe. Brahmachary, along with Jyotirmoy Dutta of Bose Institute, Kolkata, made the first comprehensive approach towards understanding the nature of big cat pheromones. After years of research with Mousumi Poddar Sarkar on synthesising the chemical nature of tiger urine (marking fluid), he found out that the molecule 2 acetyl-1-pyrroline (2AP) was present in tiger urine (marking fluid) and was the very same molecule that imparts the beautiful aroma to fragrant varieties of rice like basmati.

Human pheromone Brahmachary gave his opinion on human pheromones. In an interview he expressed

On physics Brahmachari did a research on "Solution of the Combined Gravitational and Mesic Field Equations in General Relativity". Which was published in 1960 in Progress of Theoretical Physics.

Born Free Foundation He was one of the founding patrons

Award For his contributions to science popularisation, he received the coveted state prize of West Bengal Rabindra Puraskar. He also got D.Sc. degree from the University of Calcutta in 2008.