Coromandel Express Accident: After a horrific accident involving three trains in Odisha’s Balasore district on Friday evening, the long-distance 34 train Canceled by. An officer gave this information. He said that the route of seven trains has been changed. Howrah-Puri Superfast Express, 12863 Howrah-Bengaluru Superfast Express, 02837 Howrah-Chennai Mail Cancelled. Done. Howrah-Puri Superfast Express, 20831 Howrah-Sambalpur Express and Santragachi-Puri Express were also cancelled. Is.