National Higher Secondary School Mannargudi

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The National Higher Secondary School, Mannargudi (NHSS) is a school in Mannargudi, India. It was established in 1899 by Sri Singaravel Udaiyar and Sri Ramadurai Iyer. It uses English and Tamil as its languages of instruction.

The school conducts science exhibitions and participates in NSS activities. It features vocational studies as a course choice.