hindi and Urdu .... Is Urdu is from hindi or ....

[Skumar5000]

You're right, but these Hindus that you speak of represent a small minority of the Hindu population. Secondly, the devnagari script and similar Brahmic scripts have always been more understandable (in terms of numbers) than the Persian/Arabic script. Hindustani was originially in Persian script because it was Mughal Sarkaar and the power was at the time heavily Persian-influenced. When their empire disintegrated, Hindus regained power and influence, and hence Devnagri was a more natural script than Nastiliq for India. In the 1930's, the Indian National Congress advocated both scripts, whereas the Muslim League wanted only Persian script...when Pakistan was created, there was no political need to compromise Hindi and Urdu as Hindustani, and thus Hindustani was officially split up into Hindi and Urdu. Yet Scholars to this day contend that they, along with Punjabi, are dialects of the same language-Hindustani.

As for why India supports a more Sanskritized Hindi, it was not purely and primarily due to Upper Caste agitation (though yes, there was, as always), but because Sanskrit words are common throughout India -from North to South (except Tamil). I know and speak Sanskrit-if I get used to their pronunciation, I can understand maybe 50% of what people from Panjab to Andhra Pradesh say. It decreases as you go south, but nonetheless, there is a high degre of mutual intelligibility. Had India standardized and sanskritized all the Indian languages, though the gramatical systems and pronunciation would be different, Indians would be able for the most part to understand each other.

Of course, Pakistan tried to Persianize all of its languages too to link itself outside of the subcontinent, but it failed in doing so...its imposition of Persianized Urdu, as you know, caused its own partition.