Biswajit Roy received a PhD from IISER Kolkata in 2021. He is currently studying molecular fingerprints in the present and past sediments and the interactions of organic molecules with natural systems. The main tools of his study are lipids, compound-specific stable isotopic analysis, inorganic geochemistry, and biogeochemical analyses. His research interest includes sedimentology, isotope geochemistry, organic geochemistry, geological processes, carbon biogeochemical cycles, pedology, fluvial sedimentology, and petrography