Is this the correct way of investing smartly to play safely with low risk and to beat inflation?

Hi guys,

I’ve read some where in some website related to investment :

1.Investing in PPF is waste of money, since the inflation on avg is 10.5% and the PPF is giving only 8% and the net loss is 2.5%.

2. To achieve 20,00,000 in 10yrs span, we have to invest 9,683 monthly in SIP by expecting a 10% return at the final [- may be after inflation adjustment].

Here my question is “To beat inflation and to play safe with minimal risk, Can we split Rs.9,683 [make round fig as 10,000] into two parts like Rs.5000 which will go to PPF and Rs.5000 into MFs per month to achieve the above goal in #2?”

Thanks,
Chakri