Yes, SIP is a systematic way to invest in mutual funds. If you don't have money to invest a big or lump-sum amount the SIP is a good alternative to it. You get some respite since there's no burden of depositing huge amounts and you can start investing with a small amount of Rs.500 only. Also, you can plan your investments fortnightly or monthly as you feel comfortable. So, each month an auto debit can be set to transfer money into the plan chosen.