The Harbour Line is a branch of the Mumbai Suburban Railway. It is operated by Central Railways. It covers most of Navi Mumbai and the eastern areas of Mumbai. It’s termini are Chhatrapati Shivaji Terminus (CST) Andheri and Panvel on the CST-Andheri CST-Panvel and Panvel-Andheri routes. It also has termini at Nerul and Vashi All harbour line services operate as slow services. The line is a double line and therefore does not have any fast trains on it.