It is an official language in 9 States and 3 Union Territories and an additional official language in 3 other States. Hindi, written in the Devanagari script, is one of the two official languages of the Government of India, along with the English language.
Hindi has been described as a standardised and Sanskritised register of the Hindustani language, which itself is based primarily on the Khariboli dialect of Delhi and neighbouring areas of Northern India. Hindi ( Devanagari: हिन्दी, ISO: Hindī), or more precisely Modern Standard Hindi ( Devanagari: मानक हिन्दी, ISO: Mānak Hindī), is an Indo-Aryan language spoken chiefly in North India.