School of Marine Sciences of Cochin University of Science and Technology (CUSAT) is the only one of its kind in India encompassing all branches of Marine Sciences such as Marine Biology, Marine Geology and Geophysics, Physical Oceanography, Chemical Oceanography and Atmospheric Sciences under amm umbrella. Over the years, School of Marine Sciences at CUSAT has played vital role in developing Marine Sciences in the country and has spawned many eminent personalities in that process, who are now adorning key positions in Marine Science Institutions in the country and abroad. School of Marine Sciences also play active role in implementing Marine Science related projects in the country with the help of funding from various central and state institutions. Recognizing the contributions of the school of marine sciences, CUSAT, Ministry of Earth Sciences (MoES, Govt. of India) has instituted an Ocean Sciences and Technology Cell (OSTC) at CUSAT which was later renamed as Earth Science and Technology Cell (ESTC). The school of Marine Sciences has now completed 80 years of glorious existence and to commemorate this occasion it has been decided to organize the first International Conference on Frontiers in Marine Sciences (MARICON’19) and MARICON’23 is the second one in the genesis of this seminar. The proposed International Seminar intends to provide a platform for leading scientists, teachers, researchers and students from Marine Sciences to discuss and exchange ideas in this frontier research area. The deliberations will keynote include, keynote addresses, invited lectures, oral and poster presentations.