On 6th October, 1839,Debendranath Tagore, son of(Prince) Dwarkanath Tagore, establishedTattvaranjini Sabha,which was shortly thereafter renamed the Tattwabodhini (Truth-seekers) Sabha. Initially confined to immediate members of the Tagore family, in 2 years, it mustered over 500 members. In 1840, Debendranath published a Bangla translation ofKatha Upanishad.