It has billionaires and big ambitions. Now India wants something that no global economic powerhouse should be without: an international symbol for its currency.
As Simon said, there is already a Unicode slot for the Rupee currency symbol, and a recommended form, which I have rendered in several fonts, e.g:
But it's not really in the same league as the leading monetary symbols, and doesn't work with "1", so I can see why some people might think it needs an upgrade.
May I suggest an international symbol of the Rupee?
^ That's what immediately came to mind. What's the reward for the winning design? I could use some red potion.