Key Details of the 1972 ISI Stamp:
- Release Date: May 29, 1972.
- Face Value: 20 Paise.
- Theme: Silver Jubilee (25th anniversary) of the ISI.
- Symbolism: The design highlights the ISI’s role in standardization and certification (now known as the Bureau of Indian Standards – BIS).
- Philatelic Items: Available as Mint Never Hinged (MNH) stamps, blocks of 4, full sheets, and on First Day Covers (FDC).
The stamp was issued by the Department of Posts, India, to celebrate the institution’s 25 years of service in setting standards for industrial products and consumer safety.



