Solution:The Congress of Dalit Nationals held in Brussels in 1923 was a significant event in the history of the Dalit (lower caste) movement in India.The Congress was organized by Dr. B.R. Ambedkar, a prominent leader and advocate for Dalit rights, to highlight the issues faced by the Dalit community, both in India and globally.
In 1927, Jawaharlal Nehru participated in the Congress of Dalit Nationalists in Brussels on behalf of the National Congress.