Although some say that the song- the national anthem of Bharat- was composed by Gurudev Ravindranath Tagore as a welcome song to the King George V, that is not the fact. Tagore himself refuted this charge saying that he is not such a small minded person to sing in praise of mortal beings. It was true that he was requested by some body who was in the Reception committee to welcome the King George V to compose a welcome song. But Tagore declained to do so. He had composed a song in praise of the lord almighty. However, a portion of this song (which is having five stanzas) was sung by his niece at the said reception function. Later on, Tagore said that it was not meant for that.
This song was chosen for Calcutta session of the Indian National Congress where it was sung in full.
I am not sure whether Tagore's niece sang at the Congress session or at the King's reception.