The Road Transport and Highways Minister in a written reply to the Rajya Sabha said additional cost is not incurred in all delayed projects as in Build-Operate-Transfer (BOT) projects, as escalation cost is absorbed by the Concessionaire. For other projects, if the delay is attributable to the Project Authority, price escalation is paid as per contract conditions, which may or may not result in additional cost, depending upon the final value of price escalation determined on the actual completion of the project and final settlement of bills, he added.