The Investment Development Path (IDP) theory, introduced by John H. Dunning, links a country's development level to its foreign direct investment (FDI) dynamics. It outlines five stages of development where the flow of inward and outward FDI changes as a country evolves economically, with India showing a unique trajectory diverging from the typical IDP model. Factors such as firm-specific characteristics and macroeconomic conditions have influenced India's FDI behavior, particularly its growing outward investments.