Watch | Multi-layer security blanket around Delhi for Republic Day

Security has been beefed up in the nation capital on the occasion of Republic Day celebrations. A multi-layer security blanket, with anti-aircraft guns and LMGs positioned at vantage points, has been set up with intelligence inputs that terror groups may target some important installations in the national capital.Gunners have been given clear instructions to bring down any aerial object flying without permission. A 'NOTAM' (Notice to Airmen) has been declared from 10.35 AM to 12.15 PM during which no flights will land or take off at the Indira Gandhi International Airport.