IST: Maintained by CSIR-NPL India NATIONAL METROLOGY INSTITUTE (NMI) OF INDIA WE MEASURE TO SERVE THE NATION Facebook Twitter Youtube Instagram Linkedin Whatsapp English/ हिन्दी सीएसआईआर-राष्ट्रीय भौतिक प्रयोगशाला CSIR-National Physical Laboratory Menu Home About us Our Director Glimpses of CSIR-NPL NPL Charter Vision & Mission Organizational Structure Research Council Management Council Quality Policy Media Coverage Science & Technology Physico-Mechanical Metrology Mass Metrology Length , Dimension & Nano Metrology Temperature & Humidity Metrology Optical Radiation Metrology Force & Hardness Metrology Pressure, Vacuum & Ultrasonic Metrology Acoustics & Vibration Metrology Fluid Flow Metrology Electrical&Electronics Metrology LF, HF Impedance & DC Metrology AC High Voltage & Current Metrology AC Power & Energy Metrology Quantum Nanophotonics Metrology Quantum Resistance Metrology Environmental Sciences&Biomedical Metrology Atmospheric Science & Metrology Gas Metrology Biomedical Metrology Sensor Devices & Metrology Advanced Materials & Device Metrology Photovoltaic Metrology Photonic Materials Metrology Advanced Carbon Products & Metrology Bharatiya Nirdeshak Dravya (BND) : Indian Reference Material Indian Standard Time Metrology Time and Frequency Metrology LF & HF Voltage, Current & Microwave Metrology Electromagnetic Metrology Academic Programs Ph.D Program PMQC Services NPL Outreach for National Development Planning, Monitoring & Evaluation Group Business Development Group Intellectual Property Right Group Knowledge Resource Centre Network, Server Infrastructure & Cyber Security (NSIC) Library, Website, and Social Media Section T&F Metrology Support & Infrastructure Managament End User IT Services Digital Metrology Human Resource Development Human Resource Development Group Skill Development Workshop Calibration & Testing Institutional Resources Annual Report Papers Published Diamond Jubilee Volume A Compendium of Scientific Triumphs CSIR Women Achievers in STEM IR@NPL Samiksha Collected Works of KS Krishnan Educate & Explore Achievements Important Links eOffice email.gov.in e-HRMS CSIR-ACCESS Careers Intranet CSIR Web Portals CSIR’s COVID Portal CSIR’s Societal Portal CSIR’s Technology Showcase JIGYASA PRABHASS OneCSIR AcSIR NPL Former Scientists Forum Downloads Administration ANNOUNCEMENTS Prof. Venu Gopal Achanta (Director, CSIR-NPL) elected as Fellow of OPTICA (Optical Society of America) ................................................................ Prof. Venu Gopal Achanta (Director, CSIR-NPL) elected to the Commission C2 of International Union of Pure and Applied Physics (IUPAP) ................................................................ Prof. Venu Gopal Achanta (Director, CSIR-NPL) elected to the International Committee for the Weights and Measures (CIPM) [Click] ................................................................ Prof. Venu Gopal Achanta (Director, CSIR-NPL) elected Fellow - INSA [Click] ................................................................ Dr. VPS Awana is selected for "MRSI-CNR Rao Prize Lecture in Advanced Materials" for the Year 2025 [Click] ................................................................ Written Paper Notice against Advt. No. Rectt./03/2022 for the Posts of Technician (1) [Click] ................................................................ Corrigendum in regard of Trade Test result against Advt. No. Rectt./03/2022 for the Posts of Technician (1) [Click] ................................................................ Certification Services: Emission & Ambient Monitoring Systems [Click] ................................................................ Trade Test result against Advt. No. Rectt./03/2022 for the Posts of Technician(1) [Result] ................................................................ Walk-in-Interview for Project Staff on dated 14/10/2025 & 15/10/2025 [Advt.] [Application Form] [Result] ................................................................ Walk-in-Interview for Consultant (Retired) on dated 07/10/2025 [Advt.] [Application Form] [Result] ................................................................ AcSIR, Admission Notice (January-2026 session) Last Date to Apply- October, 21, 2025 [Click] ................................................................ CSIR-NPL transferred technology 'Process for Recycling of Metal/Polymer Laminate Based Multilayer Plastics (MLPs) for Recovery of Materials for Technological Applications' to M/s Surya Compounds and Masterbatches Pvt. Ltd., Sonipat [Click] ................................................................ CSIR-NPL transferred technology 'Indigenous MWCNTs Synthesis by CVD and development of flexible MWCNTs paper therefrom' to Ddev Plastiks Industries Limited, Daman [Click] ................................................................ Notification pertaining to provisional certification of low volume manual PM2.5 samplers [Click] ................................................................ Participate in Training Program [Click] ................................................................ Colloquium Series ................................................................ Azadi Ka Amrit Mahotsav - Sabka Saath Sabka Vishwas [CLICK] ................................................................ MANDATE METROLOGY .To develop measurement and calibration standards that are internationally accepted and are among the best in the world. .To offer metrology services to the industry and to the problems of national interest including for legal metrology. .To develop reference standard materials, Bharatiya Nirdeshak Dravya (BND). RESEARCH .To conduct multidisciplinary R&D to develop the measurement standards for evergreen and futuristic technologies like solar cells, bio-medical, and quantum information processing. .To develop sophisticated analytical equipment under the Government of India’s Make in India initiative for emerging India. [Click for More] SKILL DEVELOPMENT To train large pool of young scientists and industry personnel under the Skill India Initiative. [Click for More] COMMERCIAL SERVICES . Calibration and Testing . 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