Chart correction N40/21 — chart 61591
61591 5Ed. 2/25/17 LAST NM N43/20 N40/21 Add Submarine cable [L30.1] joining 20°06′20″S 57°31′03″E 20°06′14″S 57°30′19″E 20°06′08″S 57°30′08″E 20°05′52″S 57°29′27″E 20°05′38″S 57°29′22″E 20°05′23″S 57°29′02″E (14(171)21 Dehra Dun)
Source: NGA U.S. Notice to Mariners · edition: 5Ed. 2/25/17
Reference information — always verify against official Notices to Mariners before navigation.