How Best To Wire A 5.1 I Want Assemble The 7.1 Or 5.1 Dvd Home Theatre Sys. Which Products I Buy Like Wire Dvd Speaker Amplifier?

I want assemble the 7.1 or 5.1 dvd home theatre sys. which products i buy like wire dvd speaker amplifier? - how best to wire a 5.1

What is the difference between 5.1 or 7.1 or 9.1, while the disc is 5.1, the other reason. my budget is 20,000 to 30,000 rupees (Indian currency) I want the sound is like a first-class theater.