Though they remained tightlipped about the name of shipyards that have been shortlisted, the sources said a Request for Proposal (RFP) will be issued soon once the report has been studied in detail.Besides the State-run shipyards, private players like larsen & Toubro (l&T) and Pipavav Defence & Offshore Engineering Company, in which Anil Ambani-led ADAG has announced its decision to pick up a controlling stake, are eyeing the mega deal.