It is not advisable to switch funds unless and until you have a very strong reason that your previous fund was not the good one.. Most of the Fund house provide SIP such as FIDELITY, KOTAK MAHINDRA, SBI, UTI and many more to name them. You can also contact any of these service providers for assistance such as, Geogjit, Sharekhan, India Infoline, Karvy Consultancy, UTI, SBI etc, if you plan to buy MUTUAL FUND