The Andaman and Nicobar Islands served as an important halt point for trade ships en route to these nations and as well as China. During 844–848 AD the daily revenue from these nations was expected to be around 200 maunds (8 tonnes (7.9 long tons; 8.8 short tons)) of gold. During 984–1042 AD, under the reign of Raja Raja Chola I, Rajendra Chola I and Kulothunga Chola I, the naval expedition by Chola dynasty captured lands of Burma, Sumatra, Sri Lanka, and Malaya, and simultaneously repressing pirate activities by Sumatran warlords.[1][16]