How can a person build ₹1 crore fund in 21 yrs with ₹50,000 monthly salary?

A person can build a ₹1 crore fund corpus in 21 years on a ₹50,000 monthly salary by investing ₹10,000 monthly in SIP at 12% annual return, NDTV Profit reported. The total principal one would invest over this period amounts to ₹25.2 lakh. Compounding returns on the investment would add ₹79.1 lakh, taking the total corpus to ₹1.04 crore.