The commemorative cancellation features a large stylized line-art numerals "25" with a globe embedded inside the numeral '5', beneath which appears the word "Excellence". The top text reads "एनसीपीओआर का रजत जयंती वर्ष / 2000-2025 / Silver Jubilee of NCPOR 2000-2025". The base of the postmark bears the postal location identifier "सडा 403804 SADA" and the cancellation date "05-04-2025".
Issued by India Post to celebrate the 25th anniversary of the National Centre for Polar and Ocean Research (NCPOR), an autonomous R&D institution under the Ministry of Earth Sciences located in Sada, Vasco da Gama, Goa. Established in 1998–2000, NCPOR is India’s nodal agency responsible for coordinating scientific research expeditions to the Antarctic, Arctic, and Southern Ocean regions, as well as managing stations like Maitri and Bharati. The special postmark commemorates a quarter-century of Indian polar and oceanographic achievements dispatched through the Sada Sub Post Office.
