Jana Gana Mana is the national anthem of India. It was originally composed as Bharoto Bhagyo Bidhata in Bengali by polymath Rabindranath Tagore. 

The first stanza of the song Bharoto Bhagyo Bidhata was adopted by the Constituent Assembly of India as the National Anthem on 24 January 1950.

A formal rendition of the national anthem takes approximately 52 seconds.

A shortened version consisting of the first and last lines (and taking about 20 seconds to play) is also staged occasionally.

 It was first publicly sung on 27 December 1911 at the Calcutta (now Kolkata) Session of the Indian National Congress.