Rajatantrapravina Acharya Brajendra Nath Seal was the greatest savant and polymath of the 20th century. As the whole body of human knowledge was known to him, he could approach a subject matter from the standpoint of totality and examine its relation to other subjects to get a fuller understanding of its place in the world's widest canvas. He was a seeker of truth and believer in universal humanism. This essay embraces a brief account of this forgotten genius - a scholar who elevated and exposed brilliantly the cultural heritage of India, its philosophy, science, history, religion and civilization. His magnum opus 'Positive Sciences of the Ancient Hindus', epic 'The Quest Eternal', and other works remain yet to be critically analysed and studied, and so is the man.