Even as Tamil Nadu chief minister MK Stalin signed off his U.S. sojourn with a “goodbye USA” post, there is still a lot of speculation about the real purpose behind his nearly month-long tour across America. Though the official reason being given is that he had gone there to talk up foreign investment for the state, but both his critics and well-wishers are not convinced that the kind of business meetings that Stalin had lined up with CEOs reveal foreign investment had driven the DMK leader to camp in the U.S. Sources close to Stalin say the real purpose of the CM staying away from Chennai was that he was advised by astrologers, consulted by wife Durga, that the CM must stay away from his home, preferably travel across seven seas for the sake of his well-being and future of his politics. That is why in view of the inauspicious times, he also put off elevating son Udhayanidhi as Deputy CM as he was not sure of its impact on senior DMK leaders His critics have been panning his U.S. trip in social media as a waste of public money.