A workshop was organized by the Department of zoology, IIS (Deemed to be University) Jaipur in which Dr. Rajbala Verma Assistant Professor, Department of Zoology, University of Rajasthan shed her expertise to post graduate students. She gave a lecture on Genotoxicity and Chromosomal Abberation Assay. Chromosomal aberrations are abnormalities in the structure or number of chromosomes and are often responsible for genetic disorders. Chromosomal abnormalities can result from either a variation in the chromosome number or from structural changes. These events may occur spontaneously or can be induced by environmental agents such as chemicals, radiation, and ultraviolet light. Visible changes to chromosome structure and morphology have played a very important part as indicators of genetic damage in both clinical and cancer studies. Postgraduate students have research dissertation in their curriculum in which they have to choose some research problem. So they learnt this techniques by which they can assess genotoxicity of any chemical or compound. Dr. Rajbala Verma explain the technique in detail followed by practical demonstration. This workshop proved very helpful for students.