'Palace on Wheels' is ______________.
The Palace on Wheels is a luxury tourist train. It was launched by the Indian Railways in association with Rajasthan Tourism Development Corporation to promote tourism in Rajasthan. The Palace on Wheels was started on 26 January 1982. The concept of the Palace on Wheels was derived from the royal background of the coaches, which were originally meant to be the personal railway coaches of the erstwhile rulers of the princely states.