Periyar Maniammai Institute of Science & Technology (PMIST), formerly Periyar Maniammai College of Technology for Women and Periyar Maniammai University (PMU), is a private deemed-to-be-university headquarters is in the town of Vallam in Thanjavur, Tamil Nadu, India. The campus is on 216 acres (87 ha) 45 km (28 mi) east of Tiruchirapalli and 10 km (6.2 mi) west of Thanjavur.