“As the estimation was fixed at Rs 120 crore, contractors vying for the project should pay Rs 1.20 crore as EMD. Even though the EMD is refundable, the refund for unsuccessful bidders is delayed,” a Chennai Corporation contractor said. Meanwhile, the civic body decided to go ahead with the project to construct a skywalk connecting Mambalam Railway station and T Nagar bus terminus, despite the authority could not find a suitable contractor yet. Also taken up under the smart city mission, skywalk would come up at a cost of around Rs 29 crore.