What is Mutual funds? How can I earn from It? I want to invest Rs. 10000. Where I can start?

I want to invest 10000/- in Mutual funds. Kindly please tell me what is mutual funds and how can I invest in it. Please tell me the step by step procedure for documents required and from where to start.
How and when I have to pay 10000/- or if there is any other option available. and also tell me how can I earn from mutual funds.
Serious Answers Please…………………..

How to start in Mutual funds?

I planning to invest in Mutual funds and my my intend is to save tax from it. How do i start ?
What is a folio number and how do i get ? Is all Mutual funds schemes can have tax benefits under 80C or only the ELSS schemes?

Also Please let me know the best schemes which i could invest in ? Thanks