Punj Lloyd, along with its offshore engineering arm - PT Sempec Indonesia - has secured its largest offshore platform project to re-develop the Heera oil field on an EPC basis from Oil & Natural Gas Corporation (ONGC). According to a release issued by Punj Llyod to the BSE today, the order is valued at around $290 million."Heera field is located about 80 km west of Mumbai in the Arabian Sea. The scope of work includes surveys (pre-engineering, pre-construction / pre-installation and post-installation), design, engineering procurement, fabrication, loadout, tie-down/sea-fastening, transportation, installation, hook-up, testing, pre-commissioning and commissioning of four unmanned platforms, 70 km of submarine pipeline (rigid & flexible), laying of 25 km composite cables, modifications of seven existing platforms and installation of a new SBM in Mumbai High South," the release added.The work is scheduled to be completed within 16 months, the release said.