Mumbai: The Centre today gave an in-principle approval for financial bids or request for proposals (RPF) for the much-delayed Rs 15,000-crore Navi Mumbai International airport.

At a meeting held with the authorities of the City and Industrial Development Corporation (CIDCO) in New Delhi, the aviation ministry gave its in-principle approval for the RFPs which will be soon shared with the four bidders shortlisted for the project, according to official sources.

CIDCO had invited the global tenders for request for qualification (RFQ) on February 5, 2014. It received nine bids out of which four have been shortlisted.