What is PPF Public Provident Fund?
PPF Public Provident Fund is for citizens of India from Government, where the lock in period of the fund is for 15 years with an interest rate of 8.7% per annum(this may vary). Minimum of Rs. 500/- and Maximum of Rs 1,50,000/- in a financial year, An individual can open account with Rs 100/- but has to deposit minimum of Rs 500. This PPF comes under Section 80C where you no need to pay tax even after withdrawal of 15 years.
PPF Calculator Excel Sheet