evidence: Top 10 Facts about the Jana Gana Mana, the National Anthem of India 1. Originally, it was in Bengali Language. [...] The India’s National Anthem otherwise known as the ‘Jana Gana Mana’, was first written by a poet and playwright Rabindranath Tagore. [...] On 24 January 1950 (before India’s first Republic Day on 26th), the first stanza of Tagore’s "Bharoto Bhagyo Bidhata" was officially declared as the National Anthem of India by the Constituent Assembly of India.