Hindi (हिंदी) is a standardised and sanskritised register of the Hindustani language that is associated with the Hindu religion. Hindustani is the native language of people living in Delhi, Haryana, Western Uttar Pradesh, Bihar, northeastern Madhya Pradesh, and parts of eastern Rajasthan, and Hindi is one of the official languages of India. Hindi approximately the sixth-largest spoken language in the world. The Constituent Assembly adopted Hindi as the Official Language of the Union on 14 September 1949. Hence it is celebrated as Hindi Day. Hindi literature is broadly divided into four prominent forms or styles, being Bhakti, Shringar. Veer-Gatha and Adhunik.