One of the key features of the bank fixed deposits (FDs) is the insurance benefit by the Deposit Insurance and Credit Guarantee Corporation (DICGC) on a sum of up to Rs 5 lakh for deposits, including principal and interest. Such insurance covers all deposits, including the amount kept in the savings account, current account, and FDs. However, there are some highly secured investment instruments available in the market that are backed by the sovereign guarantee. Seniors may choose such instruments to diversify their investment portfolio. For example, there are multiple investment products in post office schemes that can offer very good returns, and they are backed by the Government of India. Another attractive product is the RBI’s floating rate savings bonds (FRSB), which are government-backed and offer a high return on investment.