India adopted its own constitution on January 26, 1950, and became a republic. Dr. B.R. Ambedkar was the law minister who was the principal author of the nation’s constitution. Among the most significant features of the constitution was declaring untouchability unlawful.
“After centuries of hitherto unchallenged and illegal authority relating to human rights violations, Manusmriti in terms of laws of India became illegal overnight.
“Under Manu’s dictum, the denial of intermarriage between different castes helped the caste system to gain its footing and fortify the social composition he envisioned. His optics resulted in an altogether new culture in the society which dehumanizes Shudras and Untouchables, deprived women of their basic freedoms and empowerments.”
Excerpt from Hinduism: beyond rituals, customs, and traditions. Progressivehindudialogue.com