New Delhi, July 19 -- Many investors start a systematic investment plan (SIP) with a fixed amount and continue contributing the same amount for years without reviewing it, even as their salary grows. Over time, this could result in investing a smaller proportion of income than originally intended.

Mirae Asset Mutual Fund, in the latest edition of its M-FinBytes, has introduced the "Rule of 1% Upgrade," a simple strategy in which investors increase their SIP allocation by just one percentage point of income every year.

According to the fund house, "The Rule of 1% Upgrade is not about making a dramatic jump. It is a yearly nudge: increase the share of income directed towards investments by one percentage point, subject to affordability, f...