Sagar Mitra is a distinguished Professor in the Department of Energy Science and Engineering at the prestigious Indian Institute of Technology Bombay, India. Prior to joining IIT Bombay in 2009, he served as the Principal Electrochemist at Replisaurus Technologies in Stockholm, Sweden from 2006 to 2009. At present, Professor Mitra not only serves as a faculty member at IIT Bombay but also leads his own IITB start-up company, Voltrez Technologies. The company is dedicated to the manufacturing of patented dendrite-free technology for safe liquid electrolyte-based lithium-ion batteries, addressing critical safety concerns associated with battery technology. Beyond his academic and entrepreneurial endeavours, Professor Mitra holds significant roles in various national committees and advisory boards. He actively contributes to NitiAayog as part of the lithium circular economy subcommittee, assisting in the formulation of policies for lithium recycling. Additionally, he collaborates with the Government of India's PSA (Principal Scientific Adviser) office on the Battery Storage Roadmap for India. Recognized for his expertise, Professor Mitra served on the technical advisory boards of esteemed institutions such as the Central Electrochemical Research Institute (CECRI) in Karaikudi, ARCI-Hyderabad, and RCI-DRDO Lab in Hyderabad. Furthermore, he serves as a member of the Board of Directors for Epsilon Carbon and Advanced Materials Industry in India and is a Technical Advisory Committee member for Thermax in Pune. Professor Mitra's current research interests revolve around the development of advanced materials and technologies for various energy storage applications, with a particular focus on lithium-ion batteries, sodium-ion batteries, and metal sulfur batteries. His contributions to the field are underscored by his impressive publication record, boasting more than 130 peer-reviewed articles, as well as the filing of 30 patents in the area of different metal-ion batteries. Professor Mitra's research group is deeply engaged in exploring the performance, understanding, and cell prototyping of lithium-ion batteries, sodium-ion batteries, and metal sulfur batteries.