If you open an account in this Post Office scheme and deposit a maximum of Rs.9 lakhs, at a 7.4% interest rate, you will receive Rs.66,600 in interest annually. This means you can earn Rs.5,550 every month. Through this, you can earn Rs.3,33,000 in interest over 5 years.
If you open a joint account with your spouse in this scheme and deposit Rs.15 lakhs, at a 7.4% interest rate, you will receive Rs.1,11,000 annually, or Rs.9,250 monthly. In this way, you will earn Rs.5,55,000 in interest alone over 5 years.