Why is Republic Day of India celebrated on January 26?

India's Republic Day on January 26th commemorates the adoption of the Constitution in 1950, a date deliberately chosen to honor the 1930 Purna Swaraj pledge.

Why is Republic Day of India celebrated on January 26?
India's Republic Day on January 26th commemorates the adoption of the Constitution in 1950, a date deliberately chosen to honor the 1930 Purna Swaraj pledge.