National Physical Laboratory

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The National Physical Laboratory is one of the earliest national laboratories set up under the Council of Scientific & Industrial Research.Late Shri Jawaharlal Nehru laid the foundation stone of NPL on the 4th January 1947. Late Dr. K. S. Krishnan, FRS, was the first Director of the laboratory.The main building of the laboratory was formally opened by Late Deputy Prime Minister.
Sardar Vallabhbhai Patel. on the 21st January 1950.The Silver Jubilee Celebration of the Laboratory were inaugurated by Late Prime Minister, Shrimati Indira Gandhi, on 23rd December 1975.

  • Physico Mechanical Standards
  • Electrical & Electronic Standards
  • Engineering Materials
  • Electronic Materials
  • Materials Characterization
  • Radio & Atmospheric Sciences
  • Superconductivity and Cryogenics
  • Physico Mechanical Standards
One of the important research activities undertaken by NPL is to devise the chemical formula for the indelible ink which is being used in the Indian  Elections to prevent fraudulent voting. This ink, manufactured by the Mysore Paints and Varnish Limited is applied on the finger nail of the voter as an indicator that the voter has already cast his vote.

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