A business plan is a written document that outlines the vision and roadmap for the company for the next few years. It contains details on company profile, management teams, financials, sales and marketing strategies, product/services offered, market research, customers, competitors and more. The document is vital when seeking investments or funding from banks and NBFCs.
A project report on the other hand is a end-to-end report of a project. It may contain end-to-end details about a specific project that enables businesses to follow direction and ensure that projects are being executed as per planning and budgets.