How to invest 1 lakh?

Hi i want to invest 1L , and i want money to be secured ..
can any one suggest me best ways to do it.
my options
Which is best or which combination is best?
1) NSC
3) Mutual funds
4) Shares
5) Post office MIS schems

I am interested in mutual funds but have little knowlege abt them?

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i have 1 lakh to invest,how to invest 1 lakh rupees in mutual fund