You cannot "Indian rupees font", it can be a code point in Unicode, see
http://en.wikipedia.org/wiki/Indian_rupee[
^].
A rendering of this symbol is problematic — it is not rendered in my system, even though I can read Devanagari script for this word. Wikipedia says:
The content ( ₹ <-- rupee symbol) inside the braces would only be visible if your computer have the updated version of Unicode Installed. Ubuntu 10.10 was the first operating system to include this version of Unicode.So, please listen for a good friendly advice: give up. You can not assume anything about fonts installed on you the machine of the visitors of your site. Therefore, just make a PNG picture of this symbol and insert it using the IMG tag whenever needed. Or use the full name of this currency in Devanagari — it's Unicode range is rendered at least by one font on all general-purpose modern systems.
—SA