B.R. Ambedkar
Bhimrao Ambedkar MA 1915 PhD 1927 is considered a founding father of modern India. He was a leader of India's independence struggle, an architect of its constitution, and fought for the civil rights of women and of the "untouchable" caste.
He was given a scholarship to attend Columbia by the Maharajah of Baroda. In a New York Times interview, he singled out "the best friends I have had in my life...some of my classmates at Columbia and my great professors," including "John Dewey, James Shotwell, Edwin Seligman, and James Harvey Robinson".
There is a bust of Ambedkar in SIPA's Lehman Library.