You can accumulate Rs 1 crore in your investment account by following the simple rule of 15*15*15. It says that on investing Rs 15,000 through a monthly SIP for fifteen years in a mutual fund scheme that offers annualised returns of 15%, your investment account would accumulate Rs 1 crore at the end of 15 years. In case you are ready to invest more or have a longer investment horizon, then you may estimate the time or the ticket size of your SIP using our SIP calculator.