Dr. Rozaleen Dash’s interview with Bio Patrika hosting “Vigyan Patrika”, a series of author interviews. Dr. Dash completed her PhD in Biochemistry from All India Institute of Medical Sciences, New Delhi then, she joined as Scientist- B at Maulana Azad Medical College, New Delhi. Currently, she is doing Post-Doc as a ICMR-RA fellow in the Professor Anurag S Rathore Lab, Department of Chemical Engineering, Indian Institute of Technology Delhi, India. She has expertise in Functional Characterization of biotherapeutics, Comparability of Biosimilars and Drug immunogenicity. Here, she talks about her co-first author research article titled “Impact of mAb Aggregation on Its Biological Activity: Rituximab as a Case Study” published in the Journal of Pharmaceutical Sciences (2020).