Liaison Offices (LO), Branch Offices (BO), and Project Offices (PO) represent different modes of foreign company presence in India. A Liaison Office (LO) facilitates communication and market research without engaging in direct commercial activities. A Branch Office (BO) can conduct business activities, generate income, and offer services, but must comply with local regulations. A Project Office (PO) is set up to manage and execute specific projects in India, with its operations limited to the project scope. Each setup has distinct operational and regulatory requirements, allowing foreign companies to establish their presence in India according to their business needs and objectives.