Limited Liability Partnership
An LLP is a mixture of characteristics of both, company and partnership. Providing benefits of both a company and a partnership, it is comparatively easier to form at a very low cost.
Private Limited Company
The best option for start-ups is a Private Limited Company as no other business structure can raise such large funds from venture capitalists as a private limited company would.
One Person Company
From the name itself you can infer that it has only one person as a member. It is the best business structure for solo entrepreneurs who want to start their careers.