The interest you earn on your fixed deposit (FD) depends on the frequency you have selected for the interest to be paid. This can be monthly, quarterly, or annually. If you choose to reinvest the maturity amount, you may be eligible for compound interest, which is added to the principal amount and then paid into your savings account when the FD matures. With Paytm Payments Bank, the duration of the FD will be calculated automatically, and the interest will be paid accordingly.