After Mandore,Ashram,Pooja I believe this is also a carrover from one of the most popular lineage of MG trains of that era.Besides the late Pink City Expres,which was indeed a vanquisher of Delhi-Jaipur Route this was another triumphing feat used to be hauled by those stout steam engines.Unlike its current replicate Mewar,Chetak I believe is quite more seaworthy for Udaipur,not just because it gets a tempting Abu Road based locomotive but also as a matter of fact,has a steady patronage throughout the year
Tip the hat to this legend