Cyclone Arnab poses significant risks to coastal communities, agriculture, and infrastructure. Heavy rainfall may lead to waterlogging, local flooding, and disruption of movement in low-lying areas. Gale winds are expected to damage weak structures, uproot trees, and disrupt electricity and transport services. Coastal flooding due to a storm surge of 1–1.5 metres above astronomical tide is likely in Andhra Pradesh. Agricultural losses, particularly to standing paddy and vegetable crops, are anticipated in southern Odisha. Fishing activities have been suspended, and over 4,800 boats have returned to safety. Vulnerable communities in low-lying areas may face displacement, requiring evacuation and relief measures.