Karetic Energy Pvt. Ltd. (Knowledge-driven Advanced Renewable Engineering Technologies for Intelligent Clean Energy Systems) is an IIT Delhi-based startup developing the next generation of sustainable energy technologies. The company focuses on metal electrode-based batteries and hybrid digital twin platforms for Li-ion, Na-ion, and emerging chemistries. Karetic uses electrochemical, thermal, and mechanical modeling to enable faster design cycles, predictive performance, and longer battery life. Additionally, Karetic is innovating in green hydrogen and clean-steel manufacturing, accelerating the global transition toward low-carbon, intelligent, and scalable energy systems.