Patel Engineering has informed the stock exchanges that it has won a new order worth Rs. 518 crores from the National Highways Authority of India (NHAI). Rumours about Patel Engineering winning a huge order hit the market on monday itself. Hence the Patel Engineering shares moved up smartly for the past 2 days. It reached its peak this afternoon and then went into correction mode. Those who bought Patel Engineering shares on monday and sold them this afternoon (as soon as the announcement was made) would be laughing their way to the bank.