The circular cancellation features a central illustration of planet Earth protected beneath a shield/layer graphic, symbolizing the protective stratospheric ozone layer. The circular border carries the dual-language inscription "विश्व ओज़ोन दिवस - World Ozone Day" at the top, anchored by "बेंगलूरु - 560001 - Bengaluru" and the date "16-09-2025" at the base.
Observed annually on September 16, World Ozone Day commemorates the signing of the Montreal Protocol on Substances that Deplete the Ozone Layer in 1987—one of the most successful international environmental treaties in history. Released by India Post through the Bengaluru General Post Office (560001), this postmark serves to raise public awareness about climate action, environmental conservation, and the ongoing protection of the Earth's atmosphere.
