The capital is on high alert in view of Independence Day celebrations, with more than 25,000 police and paramilitary personnel deployed across the city to maintain law and order, while a multi-layered security grid is in place around the Red Fort, a senior police officer said.

Elaborate security arrangements -- involving over 1,000 CCTV cameras and AI-based video analytics -- are in place around the Red Fort, where Prime Minister Narendra Modi will unfurl the national flag and address the nation.