people (Hindi: जाट Jāṭ , Punjabi: ਜੱਟ Jaṭṭ ) are a historical Indo-Aryan tribal group native to the Himachal Pradesh , Jammu , Uttrakhand , Balochistan , Haryana , Punjab region , Uttar Pradesh and Rajasthan . On demographics , the Encyclopedia Brittanica states: "In the early 21st century the Jat