Why in News?
World Hindi Day 2026 is observed on January 10 to promote the global significance of the Hindi language and strengthen its international presence.

World Hindi Day was first celebrated in 2006. It commemorates the first World Hindi Conference (1975, Nagpur).
- World Hindi Day: January 10 (Global promotion)
- National Hindi Day: September 14 (Adoption of Hindi as official language in 1949)
Article 343:
Article 343 states:
- Official language of the Union → Hindi in Devanagari script
- English allowed for 15 years (1950–1965) for official purposes
After 1965, English continued through
- Official Languages Act, 1963
Ensures bilingual functioning (Hindi + English) in Union administration
https://indianexpress.com/article/when-is/vishwa-hindi-divas-2025-date-history-significance-theme-9770905/: World Hindi Day 2026 – Date, Article 343, Official Language Explained