Q. Who established the Mahila Charkha Samiti in Patna to promote women's empowerment?
Answer: Prabhavati Devi Narayan
Notes: Prabhavati Devi Narayan (1904–1973), noted Bihar freedom fighter and wife of Jayaprakash Narayan, founded Mahila Charkha Samiti in Patna to empower women. She was involved with Gandhi's movement, Sarvodaya, and maintained close relations with other leaders like Kamala Nehru and Jawaharlal Nehru.