The NDRF has deployed 31 teams across cyclone-prone regions as very severe Cyclone Arnab approaches the Andhra Pradesh coast near Yanam. Authorities have activated shelters, issued public alerts and warned fishermen to remain ashore while urging people to follow official advisories. New Delhi: The National Disaster Response Force (NDRF) on Tuesday said that 31 teams have been deployed across the states likely to be affected by impending Cyclone Arnab, and a strategy.