The 4th International Conference on Design, Analysis, Manufacturing and Simulation (ICDAMS 2020) which was held virtually at Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India during 16-17th September 2020 organised by the Departments of Mechanical, Automobile and Agricultural Engineering. The main goal of organizing this conference is to provide a common platform to bring together the academic and industrial communities to address new challenges, share solutions, and discuss future research directions in the field of Engineering. The Chief Guest of the conference was Dr.R.Velraj, Professor, Institute for Energy Studies, College of Engineering, Guindy, Anna University, Chennai. Distinguished researchers Prof. Gyorgy Szekely, Advanced Membranes & Porous Materials Center, King Abdullah University of Science & Technology (KAUST), Saudi Arabia and Dr.Weiping Wu, George Daniels Lecturer (Assistant Professor) University of London, London, UK were invited to deliver keynote address regarding the latest research discoveries in their respective areas of expertise.