Currently, the RBI Floating Rate Savings Bond offers an interest rate of 8.05%, higher than the interest rates of fixed deposits (FDs) offered by most well-known public and private sector banks. Now, retail investors can subscribe to these bonds through the RBI retail direct portal. The interest rate on these bonds is reset every six months. Do note that the interest is payable semi-annually. Who can invest, how much you can invest, how to invest, how to pay for your investment, what will be the tax rules — all your questions answered.