City and Industrial Development Corporation (CIDCO) has received the civil aviation ministry's nod for request for proposal (RFP) document for Navi Mumbai airport. The crucial security clearance for four qualified bidders is still awaited from the ministry of home affairs (MHA). MIA Infrastructure of France with Tata Realty, Zurich Airport with Hiranandani Developers, GVK and GMR Group. The construction is likely to start by October, 2016.