Hindi–Urdu transliteration

Hindi–Urdu (Devanagari: हिन्दी-उर्दू, Nastaliq: ہندی-اردو) (also known as Hindustani) is the lingua franca of modern-day Northern India and Pakistan (together classically known as Hindustan). Modern Standard Hindi is officially registered in India as a standard written using the Devanagari script, and Standard Urdu is officially registered in Pakistan as a standard written using an extended Perso-Arabic script.

Source: Wikipedia — Hindi–Urdu transliteration (CC BY-SA 4.0)