There are 652 ATCs in northern region, 513 in western, 259 in eastern, 628 in southern and 92 in North Eastern regions, Minister of State for Civil Aviation K C Venugopal said.
AAI has plans to recruit 400 ATCs per year for the next three years to meet the future demands, he said, adding that Delhi airport needs additional manpower for simultaneous use of all the three runways.