[raaman]

What is the best way to start a business?

[Fergal]

There isn't any best way, only the best way for you and your unique ciricumstances.

[Tendz]

You can do a detailed research which will help you to find a good business idea and understand who your customers will be. And the rest depends on what @Fergal said.

[Angie10]

I totally agree with you, two, @Fergal and @Tendz. There's no one-size-fits-all answer to this question. There are too many variables involved that dictate how we go about things for each business idea. For instance, what works in the UK might need tweaking (or even scrapping!) in order for it to work in a different geography based on factors including the demand for said service/product, buying power and local laws etc