Dr. P. Nirmala devi, is an Assistant Professor (selection Grade) at Kongu Engineering College, Perundurai, Erode. She is having more than 15 years of teaching experience. Her area of interest includes electronic circuits, signal processing, image processing and soft computing. She has published more than 20 papers in national and international conferences. Several papers have been published in reputed national and international journals also. Her research interests include biomedical image processing and signal processing. She has delivered several lectures on various topics in image, signal processing and electronic circuits. She is a life member of ISTE and fellow member in IETE.