It's a voluntary contribution beyond the 12 per cent limit of EPF.
VPF interest rate is 8.25% anually.
It is a guaranteed return, small savings scheme used by many investors to generate the retirement corpus.
The scheme provides 7.1 per cent compound interest rate.
At the rate of 8.25 per cent interest rate, the invested amount will be Rs 22,50,000, interest will be Rs 22,45,556 and the maturity amount will be Rs 44,95,556.
In PPF, the total contribution in the 15-year period will be Rs 22,50,000, the interest amount will be Rs 18,18,209, and the maturity amount will be Rs 40,68,209.