How new T3 pier will boost IGI's international capacity by over 50%. Indira Gandhi International Airport in Delhi is planning to enhance its international traffic capacity significantly. The addition of a new Pier E at Terminal 3 will increase capacity by 1.6 crore passengers annually. Modifications at Terminal 1 will also allow for a marginal rise in domestic capacity over the next few years. A master plan is being finalized to address this expansion and.