Section 59, The Post Office Savings Bank (Rate of Interest) Order

Every depositor shall, once in each year, on the anniversary of the day on which he made his first deposit andat any other time when required by the Postmaster General, forward his book to the Postmaster General in a cover to be obtained at any Branch Savings Bank Office in. order that the entries in the said book may be compared with the entries in the books of the Postmaster General and that interest up to the 31st December of the previous year, due to the depositor, may be inserted in the book.