Calculate maturity value on a recurring deposit.
Each monthly deposit compounds quarterly for the time it has left until maturity — the first deposit compounds for nearly the full tenure, the last deposit for barely any time at all. The maturity value is the sum of every deposit's compounded value.
An RD is a fixed-return bank product with a rate set upfront by the bank, while a SIP invests in mutual funds whose returns fluctuate with the market. RDs are lower-risk but typically offer lower long-term returns than equity SIPs.