A person who acts in place of another, specifically a person appointed to assist or represent a higher official.

उपाध्यक्ष

English Usage: The vice regent oversaw the affairs of the territory in the ruler's absence.

Hindi Usage: उपाध्यक्ष राजा की अनुपस्थिति में क्षेत्र के मामलों का प्रबंधन करता था।