Anil Ambani's Reliance Infrastructure has bagged a contract worth Rs. 648 crore for a new greenfield airport in Gujarat. The airport will be built at Hirasar in Rajkot, the company said in a press statement today. Reliance Infrastructure won the contract over nine other bidders, including L&T, Afcons, Dilip Buildcon and Gayatri Projects. The company said it had achieved the highest technical score of 92.2 per cent and its bid was the lowest.