pmulibrary.org Periyar Maniammai Institute of Science and Technology Periyar Maniammai Institute of Science and Technology is a private deemed-to-be-university located in a rural part of South India accredited by NAAC. The university headquarters is in the town of Vallam in Thanjavur district, Tamil Nadu, India. 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Prakash sprakash@pmu.edu Dr. T Narmadha dirlibrary@pmu.edu