The City and Industrial and Development Corporation (CIDCO) has extended the deadline for submission of Navi Mumbai airport project bids by a fortnight after it attracted only one bidder — GVK group. GVK will also have an opportunity to revise its offer if it so wishes. Three qualified bidders — GMR group, Tata Realty and Hiranandani Group-Zurich Airport consortium — have indicated that they would not participate in the bids. These bidders cited project challenges and onerous bid conditions for their decision. The GVK group-led Mumbai International Airport Limited (MIAL) had submitted its financial offer, but the bid was not opened, as the government decided to give extra time to other companies for reconsidering their decision. Earlier, GMR group had pointed out its key concerns, such as challenges in pre-development work, delay in land acquisition and rehabilitation and absence of Stage Two environmental clearance for the project.