It also took the Civil Aviation Ministry to task for granting extensions to the project, which was delayed by four years, and not penalising the private-led airport operator, Mumbai International Airport Limited (MIAL), for it.
"Examination in the audit indicated that risks had not been appropriately transferred to the concessionaire in the development of the Chhatrapati Shivaji International Airport, Mumbai," a report of the Comptroller and Auditor General, tabled in Parliament, said.
Though the project cost doubled, "the concessionaire did not appear to have faced financial vulnerability for the same, as the funding gap was being largely absorbed by the passengers through levy of development fee (DF), though such levy was not in the Operation, Management, Development Agreement (OMDA)," it said.
"No efforts were made to secure sources of financing for the project," it said.