Large Japanese fleet approaching Port Blair, Andaman Islands according to the U.S. Joint Intelligence Committee. Daily summary dated 25 March 1942

An item reported that on 23 March a Japanese naval force was seen while approaching Port Blair, Andaman Islands [India, northeastern Indian Ocean]. It consisted of 2 aircraft carriers, one cruiser, a destroyer leader or cruisers and a 5.00 tons transport. The J.I.C. commented that this invasion was already expected for a long time. The aircraft carriers were probably seaplane tenders.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 105 dated 25 March 1942