To become crorepati with ₹25,000 monthly SIP at assumed interest rate of 10%, the investment duration would be 15 years. The invested amount would be ₹45,00,000, estimated returns would be ₹59,48,106 and total value would be ₹1,04,48,106. With 12% returns, the investment duration would be 13.5 years and with 15% returns, the investment duration would be 12 years, said NDTVProfit.