free meal from the Train in Thailand

#Train #Thailand #SpecialRapidTrain

when I was on the train to go to Chiangmai and coming back home. I've received this free meal on the train. I not sure if it is for promotion or it's for all the special rapid train or not. but, I do know that it's not for the regular local train. when I was on the regular local train to Bangkok. I had to buy my own meal or snacks on the train.