Dr. Kar works in the fields of chemometrics and cheminformatics modeling; computer-aided drug designing (CADD); risk assessment and toxicity modeling chemicals and drugs; medicinal chemistry; quantitative structure-activity relationships (QSAR); read-across study; and machine learning. Dr. Kar listed in the "Top 2% Scientists in the World for singleyr_2020" considering all research fields published, as per August 2021, data-update for "Updated science-wide author databases of standardized citation indicators". Dr. Kar has published numerous peer-reviewed research and review articles in Chemical Reviews, Nature Scientific Report, Green Chemistry, Expert Opinion in Drug Discovery, Expert Opinion on Drug Safety, Nano Energy, Nanoscale, Nature Computational Materials, Journal of Hazardous Materials, Chemosphere, Toxicology In Vitro, ACS Omega, etc., and multiple book chapters in Springer, Willey, Elsevier, etc. He has also co-authored two highly cited and popular QSAR-related books entitled “Understanding the Basics of QSAR for Applications in Pharmaceutical Sciences and Risk Assessment” (Elsevier) and “A Primer on QSAR/QSPR Modeling: Fundamental Concepts” (Springer).