In 1874, Phule couple adopted the son of Kashibai, a Brahmin widow.

When Infanticide Prohibition Home started by Savitribai Phule working as a hospital, Savitribai did not remain as one who served to widows but she went further in this regard. She adopted a child from a Brahmin widow (Kashibai) and thereby gave a message to the progressive people of the society. This adopted child was named Yashwant Rao, who later became a doctor.