किरIITH is now an E-ISSN journal. All the issues since 2020 qualified for the ISSN parameter. Each issue is being dedicated to one of the thrust research areas of IITH. Following this precedence, we are back with yet another critical area of research at IITH, "Catalysis@IITH" - Vol - 5, Issue-4, 2023 (Issue - 17). Catalysis has become an indispensable research area in many departments at IITH, including Chemistry, Chemical Engineering, Materials Science, Biotechnology, Climate Change, and Civil Engineering. Thus, catalysis provides a vibrant platform at IITH to foster inter-and trans-disciplinary collaborations among the different departments from fundamental catalysis science to generate innovative technology transfer, in line with the circular economy goals.