The link you provided leads to Usmani Taj Tours' Same Day Agra Tour by Train, departing from Delhi to Agra via the Gatimaan Express. This tour offers a convenient and enriching way to visit the Taj Mahal and other significant sites in Agra within a single day.​ https://www.usmanitajtours.com/day-trip-to-tajmahal-delhi-to-agra-high-speed-train.html