How much should a 30-yr-old invest monthly for ₹5 cr retirement corpus?

A 30-year-old would need to invest around ₹13,100 monthly through a systematic investment plan (SIP) to build a nearly ₹5 crore retirement corpus by age 65, assuming 10% annual returns. At 12% annual returns, the required monthly investment falls to about ₹7,700. However, these are estimates before taxes and costs, and mutual fund returns are market-linked, not guaranteed.