We all know that a systematic investment plan (SIP) of a mutual fund gives us the added advantage of rupee cost averaging. But there is a problem in the traditional SIP. It assumes a constant SIP each month for a long period of time. But that is not the way your income grows. For example, if you are in a job then you get annual increments and if you are in business your revenues and profits will grow over a period of time. It would be therefore not be practical for you to assume the same amount of SIP for all these years. Is there a way to overcome this dichotomy?