GVK Power and Infrastructure Ltd Thursday said it agreed to offer 49 per cent stake inGVK Airport Holdings Ltd in favour ofAbu Dhabi Investment Authority (ADIA) and the National Investment and Infrastructure Fund (NIIF). In afiling with BSE, the city-based infra major said the transaction is subject to conclusion of confirmatory due diligence by ADIA and NIIF, agreement on definitive documents and satisfaction of customary closing conditions including regulatory and third party approvals and lender consents.