A business plan is an essential document for anyone commencing a new business, already in business and critical for anyone seeking funding from a venture capitalist. The business plan needs to be comprehensive, well thought and should contain sound business reasons. You can get all the info you need here.
The business plan should prove that the business will generate enough revenue to cover expenses and make satisfactory return for bankers or investors. There are a number of ways of formulating a business plan but there are certain essential sections that they should all contain.