"Jana Gana Mana" (Bengali: ?? ?? ??, Hindi: ?? ?? ??) is the National Anthem of India. Written in highly Sanskritized (Tatsama)Bengali, it is the first of five stanzas of a Brahmo hymn composed and scored by Nobel laureate Rabindranath Tagore. It was first sung at theCalcutta Session of the Indian National Congress on 27 December 1911. "Jana Gana Mana" was officially adopted by the Constituent Assembly as the Indian national anthem on January 24, 1950. 27 December 2011 marked the completion of 100 years of Jana Gana Mana since it was sung for the first time. A formal rendition of the national anthem takes fifty-two seconds. A shortened version consisting of the first and last lines (and taking about 20 seconds to play) is also staged occasionally.