Washington, Oct. 7 -- The US launched the largest denaturalisation effort in modern history by moving to strip 40 individuals, including one of Punjab-origin man, of their American citizenship, the department of justice said.

The 40 individuals facing denaturalisation actions in multiple US courts have been accused of serious offences, including acting as an agent for a foreign government, committing voluntary manslaughter, and aggravated sodomy against a special-needs man.

Balwinder Singh of California is facing denaturalisation action in the state's eastern district court for using a fraudulent identity to gain admission to and acquire a US citizenship.

"Today's announcement marks the largest denaturalisation effort in modern history...