How can one invest ₹15 lakh via Post Office MIS?

To invest ₹15 lakh in the Post Office Monthly Income Scheme (MIS), investors must open a joint account, as the individual account limit is ₹9 lakh. The scheme offers 7.4% annual interest, paid monthly, translating into ₹9,250 on a ₹15-lakh deposit over its five-year tenure. Each joint holder's share, however, must remain within the ₹9 lakh individual limit per person.