1400 Hijri (Islamic Calendar)
📮 Date of Release: 3 November 1980
🕌 Theme: Commemoration of Hijri Year 1400
🖨️ Original First Day Cancellation + Commemorative Stamp

A highly collectible FDC marking the beginning of the Islamic year 1400, making it a significant postal issue for collectors of Islamic heritage, India Post memorabilia, and rare philatelic releases from the early 1980s.