ppf account tax-free investment opportunity for all Indian citizens. highly flexible for paying installment minimum 500-150000 for the year either lump sum or installments. easily reactivate ppf account with the late fee of 50 INR for the year. PPF-Public Provident Fund Public Provident Fund scheme details and how to work PPF? The Public Provident Fund scheme is introduced … [Read more...] about ppf account interest rate calculator rule open ppf with sbi