IRB has emerged as the preferred bidder for a BOT project comprising Design, Build, Finance and Operation of Six-laning of Tumkur Chitradurga Section of NH-4 from Km 75.00 to Km 189.00 in the State of Karanataka under NHDP Phase V on BOT basis. The estimated cost of the Project is approx. Rs. 1200 crores. The project length is 114 Kms. The Project is on Premium basis with concession period of 26 years.