What is the full form of IDFC ? - Infrastructure Development Finance Company - IDFC First Bank, formerly known as IDFC Bank is a bank promoted by the Infra The full form of IDFC is Infrastructure Development Finance Company. It is an Indian financial agency that provides investment banking, infrastructure, and wealth management firms with financial and advisory services. IDFC stands for Infrastructure Development Finance Company, an Indian finance agency that offers financial and advisory services. Learn about its brief history, products and mergers with other entities.