Dear Sandeep The cost escalation was due to remittances made -100,000 crores and other malpractices. Needless to say anything about Enron Chairman DR.Kenneth Lay, CEO Jeffrey Skilling. They are in jail. You are bit silent about the second part. Let us be watchful in the nuclear stations which MAY come by the deal. The unit price is reduced because of state's subsidy as decided in a negotiation. It is not the actual cost.