The Public Provident Fund (PPF) is a popular long-term investment scheme in India that offers tax-free returns. It is backed by the Government of India and comes with a fixed tenure of 15 years, extendable in blocks of 5 years.
Features:
A = P � ((1 + r)^t - 1) � r
Where:
A = Maturity Value
P = Yearly Deposit
r = Rate of Interest (7.1% = 0.071)
t = Investment Period (in years)