The document summarizes several important social reform movements in India, including the Brahmo Samaj (established in 1828 to purify Hinduism and preach monotheism), Prarthana Samaj (founded in 1867 with objectives including abolishing caste and child marriage), Young Bengal Movement (founded by Henry Derozio to promote rational thinking and question authority), Arya Samaj (founded in 1875 by Swami Dayanand Saraswati to reform Hinduism and oppose idolatry and caste), and Chipko Movement (started in 1973 by women in Uttarakhand to protect forests from commercial felling). The document provides brief overviews of the objectives and key figures of each