The interest rates on two key small savings schemes — the five-year Senior Citizens Savings Scheme and the Sukanya Samriddhi Account Scheme has been raised by the Ministry of Finance. While the annual interest payable on the senior citizens scheme stands at 9.3 per cent with effect from April 1(it was 9.2 per cent earlier), the interest on Sukanya Samriddhi has been hiked to 9.2 per cent (9.1 per cent).