Which is best equity based mutual fund to invest?

Hi All,

Suggest best equity based fund mutual fund to invest at the moment.My investment pattern would be through Systematic Investment Plan (SIP)

I have already the following fund with me.So, please exclude it.

1. DSP BLACKROCK INDIA TIGER FUND REGULAR PLAN
2. KOTAK OPPROTUNITY FUND
3. RELIANCE GROWTH FUND
4. SBNPP SELECT MIDCAP APPRECIATE FUND

Thanks in advance.
I am in India.