The current Kajang Komuter station inherits the original station's branch lines and responsibilities to manage railway switches, railway monitoring and goods delivery. The station employs a number of railway staff. The station is also connected to sheds for railway maintenance vehicles, as well as a warehouse. The station contains three platforms: One (platform 1) assigned at a side platform connected directly to the station building and two (platforms 2 and 3) assigned on an island platform. The platforms are lined along a set of four main lines; three run between the two platforms, and one runs along the other side of the island platform. The line adjoining platform 1 is an acceptance route, while the line aside it is a main route. The line along platform 2 could be used as a basic route for virtually any train service, while the platform 3 line is only used periodically when platform 2 is occupied by another train.