Long term investments options?

I am total dumb as far as investment options are concerned. So far I have been investing only in fixed deposits and few stocks but never ventured into Mutual funds or SIPs. Now I have about 1lakh ready for investment (one fixed deposit maturing) which I plan to put in mutual funds or SIPs. How would you recommend to invest this amount so that I get maximum returns in 10 years from now. There is a child arriving in the family soon (if this changes your suggestion.)
Many thanks for the suggestions.