The 2026 theme for International Yoga Day is 'Yoga for Healthy Ageing' to address rising life expectancy.
Prime Minister Narendra Modi will lead the national celebrations from Red Road in Kolkata.
The June 21 date was chosen for its astronomical significance as the summer solstice in the Northern Hemisphere.
Yoga has evolved into a global movement with millions of practitioners in countries like the US, UK, and Japan.