India has the eighth largest scientific and technical manpower in the world.

There are several reasons why India has a significant scientific and technical manpower.

1. Population Size: India has a massive population, which means that there is a large pool of potential talent in the country. With over 1.3 billion people, India has a vast human resource base to draw from.

2. Education System: India has a well-established education system that produces a large number of graduates every year. The country has numerous universities, colleges, and technical institutes that offer programs in science and technology. These institutions provide the necessary training and education to produce a skilled workforce.

3. Emphasis on Science and Technology: India has recognized the importance of science and technology in its development and has made significant investments in these fields. The government has implemented various initiatives to promote scientific research and innovation, such as setting up research institutes, funding research projects, and providing scholarships to students pursuing higher education in science and technology.

4. IT Industry: India has emerged as a global hub for information technology (IT) services. The country is known for its expertise in software development, outsourcing, and IT-enabled services. The growth of the IT industry has created a demand for skilled professionals in the field of technology.

5. Diaspora: India has a large diaspora spread across the world, especially in countries like the United States and the United Kingdom. Many Indian professionals in science and technology have migrated to these countries and have made significant contributions in their respective fields. The knowledge and expertise gained by these individuals abroad have also benefited India.

6. Government Support: The Indian government has taken various initiatives to support scientific and technological research. It has established research institutions like the Indian Institutes of Technology (IITs) and the Council of Scientific and Industrial Research (CSIR) to promote research and development. The government also provides funding and grants to scientists and researchers.

Overall, India's large population, well-established education system, emphasis on science and technology, IT industry, diaspora, and government support have contributed to the country's significant scientific and technical manpower.