A person who speaks deceptively or insincerely, often having two different opinions or statements for different audiences.

दोहरी जुबान वाला व्यक्ति

English Usage: The politician was known for his double tongue, saying one thing to his supporters and another to his opponents.

Hindi Usage: राजनेता दोहरी जुबान के लिए जाना जाता था, अपने समर्थकों से एक बात कहकर और अपने विरोधियों से दूसरी बात कहकर।