Security forces were on high alert in the Indian capital ahead of Independence Day celebrations on Monday, with some 45,000 personnel deployed across the city, officials said on Sunday.
Besides securing the Red Fort and its environs, security has also been stepped up all across the capital, in particular shopping areas, malls and places where people gather in large numbers.
A ground-to-air security apparatus is in place around the 17th century Red Fort from where Prime Minister Narendra Modi will address the nation for a third time, the officials said.
Police barriers have come up on scores of roads in Delhi to check vehicles and motorists. Residential areas facing the Red Fort have been sanitized, an official said. Both in Delhi and neighbouring areas, police have checked hotels and guest houses.