The OECD is an intergovernmental economic organization with 38 member countries, founded in 1961 to stimulate economic progress and world trade.

The OECD headquarters is located in Paris, France.

The OECD's main objective is to promote economic growth and development, improve education and skills, and promote international trade and investment.

India is not a member country of the OECD.

The OECD's Programme for International Student Assessment (PISA) is a global assessment of student achievement in mathematics, science, and reading.

The first PISA assessment was conducted in 2000.

The PISA assessment is conducted every 3 years.

32 countries participated in the first PISA assessment.

86 countries participated in the most recent PISA assessment.

The purpose of the PISA assessment is to compare the performance of students from different countries, identify areas where students need improvement, and inform education policy and practice.

Some of the key findings from the PISA assessments include: students in some countries perform significantly better than students in other countries, there is a large gap between the performance of boys and girls in some countries, and students from disadvantaged backgrounds tend to perform worse than students from advantaged backgrounds.

The PISA assessment has been used to identify areas where students need improvement, develop new educational programs and interventions, and inform education policy decisions.

Some of the challenges facing the OECD in its work on global education include the increasing diversity of the student population, the need for more effective teaching methods, and the need for more resources for education.

Some of the ways in which the OECD is working to address these challenges include developing new educational programs and interventions, providing funding for education research, and working with governments to develop education policies.