A postcard or card sent through the mail, usually for communication or advertising.
A promotional card sent by businesses to advertise products or services.
प्रचार कार्ड
English Usage: The company sent out a mailing card to inform customers of their new sale.
Hindi Usage: कंपनी ने ग्राहकों को अपनी नई बिक्री के बारे में बताने के लिए एक प्रचार कार्ड भेजा।