Hindi, or more precisely
Modern Standard Hindi, 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. Colloquial Hindi is
mutually intelligible with another register of Hindustani,
Urdu, which is associated with the Muslim religion. The two varieties of Hindustani are nearly identical in basic structure and grammar, and at a colloquial level also in vocabulary and phonology. Mutual intelligibility decreases in literary and specialized contexts, which rely on educated vocabulary drawn from different sources.