This adds up to Rs 3,000 per month. Over 5 years, this simple habit will significantly grow your savings while keeping your money safe. The Post Office RD scheme offers a 5-year investment period with a 6.7% annual interest rate. If you save ₹100 daily, you'll deposit Rs 1,80,000 in 5 years. With approximately Rs 34,097 in interest, your total maturity amount will be around Rs 2,14,097.