Functions OF A Dry Port (ICD)
The functions and the concept of Dry Ports are better understood by understanding the function of a Sea Port. At Sea Port, the import cargo of the region is received by incoming ships, the ship is berthed and unloaded, the cargo is segregated for each consignee and stored awaiting customs clearance and delivery. Similarly the export cargoes from the region are aggregated, costumes and other formalities observed and completed and the goods are finally loaded on the appropriate outward bound vessels. Other admin and customer facilities with proper transport activities are also done in Sea Port.
The Dry Ports perform similar functions. But they receive import cargoes and dispatch export cargoes from or to Sea Port by proper Unit Rail connected to Sea Port. All documentation is done at Dry Port and transport to and from the Sea Port is organised. You can say "A Dry Port is a port provide all the facilities of a sea port at the place far away from sea port."
You may understand the concept and activities of a Dry Port by this slide shows.