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Purba Chatterjee, a Principal Data Scientist at ExxonMobil, has experience in econometrics, supervised and unsupervised learning in fuel retail and refining. Prior to this role, Purba worked as a Consultant at KPMG India, where Purba was a model developer in surveillance analytics for an investment banking client. Purba was also an Associate Consultant at KPMG India, focusing on developing time series and machine learning models to forecast electricity demand. With a Master's Degree in Analytics from Indian Institute of Technology, Kanpur, Purba has consistently excelled academically and has a background in Electronics and Communication Engineering. Purba has also worked as a Senior Business Analyst at Inductis, and has experience in model validation for a banking client.