EDC and IDC are charges levied by the government on real estate developers for the development of infrastructure and amenities in a particular area. EDC stands for External Development Charges and IDC stands for Internal Development Charges. EDC is a one-time charge levied on the developers for the development of external infrastructure, such as roads, sewerage, drainage, and water supply. On the other hand, IDC is a one-time charge levied on the developers for the development of internal infrastructure, such as electricity, street lighting, and parks.