Summary
The letters were put in special mail boxes at the airport to reach friends and family. 📬
The program was organized by India's mail service and the IndiGo airline.
It happened on October 12 during National Postal Week.
Passengers wrote postcards instead of using screens.
Postcards showed famous places from cities like Delhi and Mumbai.
The letters were put in special mail boxes at the airport to reach friends and family. 📬
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