If you are on an Indian passport you can take INR50,000 into India. If you are on any other passport you may NOT take in any Indian rupees into the country. All foreign currency you take in must be...
$229 billion .
$229 billion USD as of August 24, 2007. Visit the following URL for details and more current information.
http://en.wikipedia.org/wiki/Foreign_exchange_reserves#Levels