The World Association for the Development of Philately (WADP) and the Universal Postal Union (UPU) jointly conceived and developed the WADP Numbering System - WNS, which was launched on 1 January 2002.

IN001.02

Country / Post India
Date of Issue 7 January 2002
Primary theme Economy & Industry
Subject 100 years of Directorate General of Mines Safety
Width 29.0 mm
Height 39.0 mm
Denomination 4.00 INR
Number in set 1
Layout/Format sheet of 40
Perforations 13.1 by 13.3
Stamp issuing authority Ministry of Communications Department of Posts
Printer Madras Security Printers Ltd
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