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what social activities was Brahmabandhav Upadhyay involved in?
Brahmabandhav Upadhyay initiated a boys' school in Sindh. He also taught for some time in Union Academy. Brahmabandhab and his disciple Animananda started a school in Kolkata.

Question: what was the school called?
Self-contained rewrite: what was the school that Brahmabandhav Upadhyay start called?