Always see this track while travelling on Central line. If you are lucky enough coming from Delhi your train might halt at Agra outer over the bridge your may spot trains passing on Achhnera Jaipur Line.
I spotted various trains like Then running Agra Jaipur Shatabdi, Khajuraho Udaipur Express when it had RR from Agra Fort, Jodhpur Howrah Express and Awadh Express.