Delhi Police has intensified security arrangements across the national capital, deploying nearly 20,000 personnel to ensure law and order on Christmas and the upcoming New Year celebrations, an official said. Security has also been tightened along Delhi's borders with Haryana and Uttar Pradesh, and in areas adjoining Rajasthan, as a large influx of people is expected from neighbouring states for Christmas and year-end festivities, the official said. "Nearly 20,000 police personnel, including traffic police and paramilitary forces, have been deployed across the city to prevent hooliganism, ensure public safety and curb traffic violations," the official said. Additional pickets, barricades and deployment of paramilitary forces have been put in place at major entry points to check nuisance and unlawful activities by people entering the city, he added. The police said security will also be reinforced at 15 major entry points to Delhi, where vehicles from adjoining states are expected t