the practice of deceiving others, especially by pretending to have skills or knowledge that one does not possess

धोखाधड़ी

English Usage: His charlatanry was exposed when he couldn't answer basic questions about his supposed expertise.

Hindi Usage: जब वह अपने कथित कौशल के बारे में बुनियादी सवालों का जवाब नहीं दे सका, तो उसकी धोखाधड़ी उजागर हो गई।