An official representative who is given full authority to act on behalf of a government or organization.

आधिकारिक प्रतिनिधि

English Usage: The plenipotentiary was sent to finalize the terms of the agreement between the two countries.

Hindi Usage: पूर्ण कार्यकारी को दोनों देशों के बीच समझौते की शर्तें अंतिम रूप देने के लिए भेजा गया था।