New Delhi, May 10 -- A Public Provident Fund (PPF) account matures after completing 15 financial years from the end of the financial year in which it was opened. After maturity, account holders have the option to either withdraw the full amount, continue the account with fresh contributions, or keep it active without continuing deposits.

However, there may be cases where investors miss the deadline to submit the extension form after maturity. In such cases, the amount in the account remains safe until you withdraw it, but a different set of rules comes into effect regarding contributions and withdrawals.

PPF currently offers an interest rate of 7.1% per annum, which is revised on a quarterly basis and compounded annually. A depositor ca...