From "Lashkari Zaban" it evolved to "Zaban-e-Hindustani" and became the lingua franga in the entire Ganges plain during the time of Sultan Aurangzeb Alamgir. It continued to dominate the entire Himalayan Sub-continent even until the late 1980s when it was still the effective language of Bollywood. In the 90s, Indian government started to overtly Sankritizing it with the usage of Devanagari script, went to extreme while doing so and calling Urdu-Hindi a separate language. Still, common Indians do not properly understand overly Sanskritized Hindi unless they go to college to learn it. However, Urdu ( in fact Hindustani) syntax and common vers have always been Sanskrit/Prakit and it was always open to Sanskrit vocabulary throughout history. Therefore, it was nothing new when Indian government took it to extreme and started calling it pure Hindia. Urdu-Hindia binary is artificial. It is Zaban-e-Hindustani to the core.