The central motive of the 4th International Conference on Recent Trends in Multi-Disciplinary Research (ICRTMDR-21) , scheduled to take place on the 26th and 27th of December, 2021 in Maldives is to address challenges associated with the effective dispensation of all the latest knowledge being generated in the fields of engineering and technology. With technology progressing at an accelerated pace, young scholars, students, and researchers in the early stages of their career are finding it harder than ever to keep up. This conference aims at helping them get up-to-speed with all the latest advancements.