Whose branch of Brahmo Samaj was still known as Adi Brahmo Samaj after the spilt in 1866?

Q. Whose branch of Brahmo Samaj was still known as Adi Brahmo Samaj after the spilt in 1866?
Answer: Debenandra Nath Tagore's
Notes: Debendranath’s Samaj henceforth came to be known as the Adi Brahmo Samaj. Due to Keshab Chandra Sen's liberal and cosmopolitan outlook brought about a split in the Brahmo Samaj in 1866.

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