Here you are missing the Congress angle, Since Communist parties have moved out of UPA. Congress has advised TATA's to move out of West Bengal. They would now move to a Congress State, or any other Alliance Patner state like LALU's Bihar or if TAmil Nadu Supports may be it would be a carrot for JAYA. So its like Blame on Communists and Mamta and win for congress. Its all politics mere bhai!!