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| - Banking - Cards - General - Insurance - Lifestyle - Loans - NRI - Real Estate - Taxation - Travel | The minimum amount which one can invest in the public providend fund (PPF) is Rs 100 per annum and a maximum of Rs 60,000 per annum. The rate of interest is 11 per cent and is compounded annually. The PPF account has to be maintained for a period of 15 years. Here, we are assuming that you put in the same amount every year. 
 
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