India stepped up its airport security after the 1999 Kandahar hijacking . The Central Industrial Security Force , a paramilitary organisation, is in charge of airport security under the regulatory framework of the Bureau of Civil Aviation Security (Ministry of Civil Aviation). CISF formed an Airport Security Group to protect Indian airports. Every airport has now been given an APSU (Airport Security Unit), a trained unit to counter unlawful interference with civil aviation. Apart from the CISF, every domestic airline has a security group who looks after the aircraft security.