- Debendranath Tagore
- Keshab Chandra Sen
- Raja Rammohan Roy
- None of the above
Answer: Keshab Chandra Sen
Explanation: In 1866, Keshab Chandra Sen and his adherents established the Brahmo Samaj of India, which marked a significant development in the Brahmo movement. Consequently, Debendranath’s Samaj of Bengal came to be recognized as the Adi Brahmo Samaj, distinguishing it from the newly formed Brahmo Samaj of India.
