1. www.nseindia.com
2. www.derivativesindia.com
3. http://www.tradingeconomics.com/Economics/Interest-Rate.aspx?Symbol=INR
4. http://www.888options.com/basics/options_pricing.jsp
5. http://www.hoadley.net/options/bs.htm
6. http://www.eurojournals.com/finance.htm