New Delhi, Oct. 5 -- A Public Provident Fund (PPF) account comes with a 15-year maturity period, after which investors can withdraw the principle amount plus interest. The maturity is calculated from the end of the financial year in which the account was opened, rather than from the exact date of the first deposit.

For example, if you opened a PPF account in November 2011 (FY 2011-12), the account will mature on April 1, 2027. This is because the 15-year maturity period was counted from March 31, 2012 in this case.

However, the maturity date may fall on a weekend and depositors can also delay withdrawing the money because they forgot about the account or were unaware of the deadline. What happens in such cases? Let's find out.

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