In an attempt to disperse the overloaded Thane station, the railways are setting up an elevated Kalwa station that will exclusively cater to suburban trains from the trans-harbour Airoli line. The existing Kalwa station will move southwards with two separate station complexes for main line and trans-harbour line.

As per the finalised plan in the first phase, the existing platform one at Kalwa will become an island platform with tracks on both sides and the fast trains getting a separate platform.