The Kerala government today decided to acquire 2,000 acre for developing an airport at Kannur in north Kerala.Disclosing this during his weekly cabinet briefing, Chief Minister V S Achuthanandan said state infrastructure promotion agency KINFRA had been appointed as the nodal body to take the work forward.Efforts for securing the required central clearances for the project were also progressing well.The Kannur airport, the fourth in Kerala, is planned as a public-private participation project on the model of Cochin International Airport.