National Physical Laboratory

National Physical Laboratory (NPL) is India's premier research institution in the field of physical sciences and metrology. Located in Central Delhi, Delhi, NPL is responsible for establishing and maintaining standards of measurement for a wide range of physical quantities. The laboratory conducts research in areas such as time and frequency, quantum metrology, and materials science. NPL also provides calibration services and consultancy to industry and government agencies. With a rich history dating back to 1947, NPL continues to play a vital role in advancing scientific knowledge and supporting technological innovation in India.