Inset top left: Map of India showing the location of the state of Andhra Pradesh, Thoothoor in Tamil Nadu and the Andaman and Nicobar Islands. Inset bottom left: Map of the Nicobar Islands. Inset right: Map of the Andaman Islands showing Junglighat and Burma Nallah, the two main fish-landing centres of South Andaman Islands and the fishing grounds.