सीएसआईआर-राष्ट्रीय भौतिक प्रयोगशाला
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78th Foundation Day of CSIR-NPL
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All Rights Reserved - The Official Website of CSIR-National Physical Laboratory, CSIR, under Ministry of S & T, Govt. of India
Site Designed & Managed by Knowledge Resource Centre
CSIR-NPL, New Delhi
India