The GMR Group has walked out of the 555-km long Kishangarh-Udaipur-Ahmedabad National Highway, 16 months after it won this in a bid in which it promised to pay the National Highways Authority of India (NHAI) over R9,000 crore on a net present value (NPV) basis. The company issued a Notice of Intention to terminate the agreement to NHAI under clause 37.2 of the concession agreement last Friday.