A systematic investment plan (SIP) allows you to invest a fixed amount in a mutual fund at regular intervals. You can start with as little as Rs 500 a month. There are several ways to start an SIP. It is best to begin directly from the fund house’s website for a direct plan. The MF Central or MF Utility platforms run by the mutual fund registrar and transfer agents and the Association of Mutual Funds in India (Amfi) are good alternatives, as you can compare various schemes across different asset management companies or fund houses through these platforms.