 The train connecting Howrah/Kolkata in West Bengal and Kanyakumari in Tamil Nadu made its inaugural run on 1 July 2000.This train was converted to Superfast category and re-numbered to 2665/2666 from 1 December 2006 onwards.Later, the train number was changed to 12665/12666 from December 2010 onwards as a part of train management system over the entire Indian Railways network.