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Naval Physical and Oceanographic Laboratory
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<p>The Naval Physical and Oceanographic Laboratory or NPOL is a <a href="/facts/Laboratory/kqR3Vtx9">laboratory</a> of the <a href="/facts/Defence_Research_and_Development_Organisation/HYTLS49D">Defence Research and Development Organisation</a> (DRDO), under the <a href="/facts/Ministry_of_Defence_(India)/PXDnHe9u">Ministry of Defence</a>, <a href="/facts/India/QW4TV4sy">India</a>. It is situated in <a href="/facts/Thrikkakara/2hAgDcBN">Thrikkakara</a>, <a href="/facts/Kochi/45FN14Cf">Kochi</a>, <a href="/facts/Kerala/DMP5u40q">Kerala</a>. NPOL is responsible for the <a href="/facts/Research_and_development/2h5UddUu">research and development</a> of <a href="/facts/Sonar/245ooRW7">sonar</a> systems, technologies for underwater surveillance, study of ocean environment and underwater materials. </p>