Constitution Day, or Samvidhan Divas in India, is observed on November 26 every year to commemorate the adoption of the Constitution of India.
 
Why is Constitution Day celebrated?

On November 26, 1949, the Constituent Assembly of India formally adopted the Constitution of India. It came into force on January 26, 1950. The day aims to bring awareness about the importance of the Constitution and Dr B R Ambedkar. Previously, this day was celebrated as Law Day.
 
History: