If you open a joint account with your wife or someone else and deposit Rs 15 lakh in lump sum, then the annual interest at the rate of 7.4% will be Rs 1,11,000. Divide it over 12 months, then full ₹ 9,250 will keep coming into your account every month. At the same time, even if you invest Rs 9 lakh alone, you will get interest of Rs 66,600 annually.
