In which year did the Urdu-Hindi Controversy begin?

The Urdu-Hindi Controversy started in 1867 when British India promoted Hindi in Devanagari script over Urdu, fueling Muslim-Hindu divides and strengthening the Two-Nation Theory. Studying this highlights its role in shaping linguistic identities, the challenges of cultural policies, and its impact on communal relations. For Pakistan, this provides lessons on managing linguistic diversity, ensuring harmony among Urdu, Punjabi, Sindhi, and other languages to promote national cohesion and cultural unity.