Being a Civil and Environmental Engineer by training, Prasenjit has always been interested in doing research in multidisciplinary fields involving Chemical Engineering, Chemistry, Geology, Microbiology, Public Health and Material Science to think about a research problem from different perspectives. It really helps in connecting the missing dots and gives it more wholesomeness. Since childhood, he has always been passionate about Astrophysics and exoplanet explorations.

He got briefly introduced to Geology during Undergraduate level and much interest in Geology grew when he was doing Master's research. The research was focused on understanding and evaluating leaching characteristics of different elements (alkali metals, alkaline earth metals, transition metals, metalloids, lanthanides and some actinides) present in fly ash generated from a coal-fired thermal power plant in India and elucidating the environmental risk of dumping fly ash in ash ponds. Contaminant transport modelling of some of the toxic metals implied potential of contamination of the subsurface zone (soil and groundwater), where fly ash is being as road subbase material.

Subsequently, during PhD, he got an opportunity to work on bacterial degradation of a group of emerging micropollutants, called "Heterocyclic Polynuclear Aromatic Hydrocarbons" in water, wastewater and contaminated soil systems. The research focus was to elucidate bacterial uptake mechanisms of the compounds in the aqueous systems and the desorption characteristics and its impact on bioavailability of the compounds in soil system.

Before coming to MIT, he was a Postdoctoral Fellow at the Bloomberg School of Public Health, Johns Hopkins University, where his research involved assessing the impact of secondhand smoking on public health in smoking and non-smoking residential buildings. Another project was to quantify different aldehydes in samples (exhale breathe, blood, urine etc.) collected from E-cigarette smokers. He also worked on analyzing heavy metals in the human brain and drinking water. He also initiated some research work on targeted and untargeted metabolomics and lipidomics in human exposome samples using ICP-MS QQQ and LC-MS Q-TOF.

As a Postdoctoral Associate at EAPS, MIT, he is involved in a project on recovery of rare earth elements (REE) from solid waste generated from phosphate fertilizer producing industries. He is keen on understanding the mineralogical changes of the waste after REE recovery and also the multiphase speciation of the REEs in the system during REE recovery. In addition, he is also motivated to explore different aspects of serpentinization process on geochemical hydrogen recovery from ultramafic rocks.
Besides doing research, he likes arts and music. He believes that arts and science are intertwined. He is passionate about nature and wildlife photography, painting and creative writing.