FYI I don't speak Hindi. The only languages I speak are English and Malayalam. I've lived outside India most of my life (was born in the UAE), so Hindi is something I never got a chance to learn.
But I do think India would benefit if her people spoke one common language rather than the dozen or so they do today. I just think Standard/New Hindi would be an ideal single language for the nation (just as Gandhi did), esp. since 400+ million people already speak it.
You must realize having a thousand non-compatible incoherent languages isn't practical in modern, technological, Internet-driven society.
In fact, they should all be sidelined and replaced by English. Problem solved. There are already more people speaking English in India than there are Americans.
The second half of your comment makes things weird/passive aggressive and personal. Not to mention the attempt at condescension. I in no way gave or am giving my personal point of view here.
BTW: India isn't a modern, Internet-driven society yet. We are still getting people to be able to read and write.