Engineering and construction giant Punj Lloyd today said it has bagged Rs 477 crore new tankage order from Japan-based Mitsubishi Heavy Industries, taking its order backlog to Rs 22,171 crore. "The scope of work entails confirmatory geotechnical investigation, early earth works, construction of two...LNG tanks on elevated piled foundation of LNG import, storage and re-gasification terminal project of Indian Oil Corporation at Ennore Port in Tamil Nadu," Punj Lloyd said in a statement.