Delhi will remain on high alert till the Republic Day as the Centre has asked the Delhi Police to be prepared to foil any attempt by terrorists to carry out strikes in the city. Sources said, the directive has come following intelligence inputs in the wake of terror attack at Pathankot Air Base.
Security has been beefed up at Indira Gandhi International Airport and both domestic and international flights have been asked to upgrade the scale of security, with some passengers being made to
undergo secondary ladder checking' in some flights.
A secondary ladder checking' is conducted just when the passenger is about to enter the aircraft with an aim to ensure that he is not carrying any weapon or chemical.
Staff of several airlines have been sensitised about the alert, asking them to report any suspicious movement or object. The CISF, which guards the high-valued installation, has been asked to maintain extra vigil with the deployment of additional personnel.