India, April 20 -- Security has been tightened in the national capital in preparation for the arrival of US Vice President JD Vance and his wife, Usha Vance, on Monday.

Vance, his Indian-origin wife, and their three children - Ewan, Vivek and Mirabel - are scheduled to land at the Palam air base in Delhi at 10 am on Monday for a four-day visit to India.

"We have already conducted mock drills according to the security protocol for the high-level visit of the US vice president. Security has been tightened across different areas of Delhi to ensure that everything goes smoothly and no untoward incident happens during the visit," a senior police officer told news agency PTI.

The Delhi traffic police has also ensured that JD Vance's travel t...