Calculating investment and interest in the Post Office RD scheme is very easy. Let's see how you can get Rs 8 lakhs by investing Rs 5000 per month.
If you invest Rs 5000 per month in Post Office RD, after five years, i.e., at maturity, you will have deposited a total of Rs 3 lakhs. With 6.7% interest, you will also receive Rs 56,830 in interest. That means, in five years, your investment will become Rs 3,56,830.