Parents are trying to cover their arrogance and stupidity. I think they should have checked the rules when they decided to travel with a foreign passport. If it was a labourer from dubai who did it I can say this could have been ignorance. This plain stupidity mixed with arrogance---my son has US passport so that entitles him to get into any country esp India without visa....dont blaim the officials. If they had given you transit visa people like you would have never gone back to renew or validiate visa.....what will they kind of attitude? You would have gone back to immigration only when you were flying back to sweet USA....
