Who among the following was associated as Secretary with Hindu Female School which later came to be known as Bethune Female School?

Ishwar Chandra Vidyasagar was appointed the first Secretary of the Hindu Female School (founded by J.E.D. Bethune in 1849) and played a pivotal role in its development and the broader promotion of women's education in Bengal. While Debendranath Tagore was a contemporary reformer, his leadership was primarily centered on the Brahmo Samaj and the Tattvabodhini Sabha rather than the administrative management of this specific institution. This question tests the core concept of 19th-century socio-religious reform movements and the specific contributions of key Indian personalities to female education.