We had a flight from Guangzhou Mumbai via Bangkok on 28th Oct flight TG669. However the flight was delayed for 10hrs and then cancelled. The airlines didn't provide any food or water to the Passenger's. Then few passengers were transferred to Bangkok via another Thai airways and few were transfered by Kenya airlines. When we 21 passengers reached to Bangkok airport via Kenya flight at night 11:30pm, the thai staff denied about any information of our arrivals and asked to wait till morning 5:30am for the manager to come over. But after giving a flight to them they promised to give us boarding in jet airways Morning 6:30am flight. But morning jetairways denied that thai did not informed about this and did not allow us to board the flight. We had to shout and flight for our rights. On which later they called the petrol police and we asked them to call the tourist police for registration of a complain against thai airways. On which they called the thai manager from head office. But she also denied any such ill treatment given by the thai staff. We waited from 28th October till 29th October evening (36hrs +) without any shelter and food provisions. Infact thai also denied any compensations for this "stating that it's an internagional aviation norm that no compensations for any technical fault in flight. However we ask for our 36hrs which were wasted on bangkok airport. We would suggest not to at all travel by thai airways. Thai gave no hotel accomodation, no food, no compensation and no return flight on time to our respective cities. We have all the photos and video copies for there bad behavior with all the passengers for record. We will file a case against them