Shanmugavelu Sithambaram is working in the Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine at the University Putra Malaysia in Malaysia. Dr. Shanmugavelu Sithambaram is one of the co-author of the article "Blood Profiles and Histopathological Changes of Liver and Kidney Tissues from Male Sprague Dawley Rats Treated with Ethanol Extracts of Clinacanthus nutans Leaf" which is published in the Journal of Clinical Toxicology. Dr. Shanmugavelu Sithambaram research interest are oral toxicity study, biochemistry