IRB Infrastructure Developers Ltd has emerged as a preferred bidder for six-laning of the Kishangarh-Udaipur-Ahmedabad section of NH-79 in Rajasthan. The section will be from km 90, near Gulabpura to km 214 at the end of Chitorgarh bypass, a total of about 125 km. The concession period of the project is 20 years, including a construction period of 910 days.