Binayak Sen lives with his wife Banani, and his younger daughter Tapti in Dhaka, Bangladesh. His elder daughter Debattama is currently a Principal Investigator at Massachusetts General Hospital and Faculty Member at Harvard Medical School after completing her PhD in Immunology at Harvard. Debattama and her husband Sean currently live in Boston. Tapti is in 12th grade of boarding school at Milton Academy near Boston, MA. Banani teaches at West Bridge School in Uttara, Dhaka.