the making of false and defamatory statements about someone

कथित बुराई

English Usage: The politician's career ended due to the calumny spread by his opponents.

Hindi Usage: राजनीतिज्ञ का करियर उसके विरोधियों द्वारा फैलाई गई कथित बुराई के कारण समाप्त हो गया।