the 15-15-15 method to become a millionaire

the 15-15-15 method of becoming a millionaire / crore-pati states that

you need to invest 15,000 per month

for 15 years

at an annual interest rate of 15 %

to become a crore-pati

you can feed the parameters at the following link

https://www.thecalculatorsite.com/finance/calculators/compoundinterestcalculator.php