Sadbhav Engineering has won the bid for a NHAI project worth Rs 459 crore for four-laning a section of National Highway-65 (NH) in Haryana. The quoted price is Rs 459 crore and the construction period is 2.5 years with a maintenance period of four years, it added. The company has also been declared the successful bidder for upgradation of 109.95 kms stretch of state highway in Karnataka for Rs 317.05 crore.