The Capital has been put on red alert and security stepped up at vital installations ahead of Republic Day celebrations as police sealed off the inter-state borders and regulated traffic to the city.
Paramilitary forces have been deployed at important places across the city and adjoining areas as intelligence agencies warned of terrorist activity."We do not want to take any chance. The strategy is vigilance, surveillance and specific security measures," they said.
National Security Guards and ITBPcommandos will keep close vigil as APJ Abdul Kalam inspects the Republic Day Parade on Thursday, in which Saudi King Abdullah bin Abdulaziz al Saud will be the chief guest.
Helicopters will also be used for air patrol of the entire parade route and elaborate ground-to-air arrangements are in place to meet any eventuality.
Anti-aircraft guns and heavy machine guns have been deployed in the capital, Special Commissioner of Police (Security) BK Gupta told reporters in New Delhi.
Quick Reaction Teams would be deployed along the parade route where a close vigil is being maintained through CCTV cameras.
"The fact that over 50 terrorists were arrested in the capital last year is an indicator of presence of terrorists in Delhi," Gupta said.
Considering the current trend of attacks in Jammu and Kashmir, special precaution is being taken to prevent car bomb and fidayeen attacks, he added.