These stamps were issued in 2003.However there are ways to get these stamps still.There are used stamps in stock too.
The first World Children's Day was celebrated in 1953 by the International Union for Child Welfare. In the following year, UNICEF (United Nation's Children fund) officially recognized and celebrated the World Children's Day. Five years later, on 20th November 1959, the World Children's Day was officially sanctioned by the United Nations. The world body also urged all the countries in the world to jointly celebrate the day and make ii an annual affair to honour the children.