A covert operation carried out to gather intelligence or information, typically for military or political purposes.

जासूसी की क्रिया

English Usage: The act of espionage during the Cold War was widespread and highly secretive.

Hindi Usage: शीत युद्ध के दौरान जासूसी की क्रिया व्यापक और अत्यंत गोपनीय थी।