"Dorsetshire" was not equipped to operate in an area with enemy aircraft and Agar was attempting to add anti-aircraft guns in Colombo and to dismantle and refit her engines and boilers to meet the challenges ahead when word arrived that an enemy fleet had entered the Indian Ocean. For an account of the Japanese attack on British positions in the Bay of Bengal see Indian Ocean raid. He stopped his refit, reassembled his machinery and put to sea as fast as he could. Acting on information that the Japanese fleet had turned back, Admiral Somerville ordered "Dorsetshire" back into Colombo to finish the refit. Agar again began to dismantle his machinery and clean his boilers. He was told by the port admiral that anti-aircraft guns would arrive in two days for his ship. It was a Saturday, 4 April, the day before Easter.