It is a systematic way of investing. Here, you can invest a fixed amount in a mutual fund scheme of your choice periodically, and the amount would automatically be debited from your bank account and be invested. The amount can be as small as Rs 100. If you have a lump sum amount, then the optimal approach would be to break the amount into smaller fragments and then invest. For example, say, Priya receives an annual bonus of Rs 5 lakh. Since she has no immediate need for the money, she decides to allocate it towards her long-term financial goals and opts for an equity mutual fund. But given the volatile market conditions, she is worried about capital erosion. In such a situation, she can consider investing Rs 50,000 each month through SIP over the next 10 months so that there is no adverse impact on the investment even if the market corrects during this period.