How do you say are you joking in urdu?

In Urdu, "Are you joking?" can be translated as "کیا آپ مذاق کر رہے ہیں؟" (Kya aap mazaq kar rahe hain?). If speaking informally to a friend, you might say "کیا تم مذاق کر رہے ہو؟" (Kya tum mazaq kar rahe ho?). Both phrases convey the same meaning, with the first being more formal.