Magnum Opus
In 1855, he developed some kind of agonizing cerebral problem and could not continue with his massive work for the Tattwabodhini Patrika. His work was such that sometimes he used to spend the entire night writing. Moreover, he had serious philosophical and theological differences with his employer Debendranath Tagore. He left Tattwabodhini and served for sometime as Principal of the Normal School for teachers' training established by Iswar Chandra Vidyasagar, his friend and mentor.
His magnum opus was the two-part Bharatbarshiya Upasak Sampraday (Vol.1, 1871, Vol.2, 1883). The brilliant introductions to the two volumes of this book evince his profound philosophical, linguistic and scientific learning and depth. Among others, Max Muller, Monier-Williams and Rajendralal Mitra were greatly impressed by his profound scholarship, though not agreeing on all points.
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