Snake spotted inside AC 2-tier coach of Swatantrata Senani Express; coach replaced. A video has surfaced online purportedly showing a snake slithering through a concealed panel above an upper berth of the Swatantrata Senani Superfast Express. The incident occurred in an AC 2-Tier coach travelling from Jaynagar to New Delhi. Railway staff searched for the reptile but could not locate it. As a precaution, authorities replaced the suspected coach at Muzaffarpur Junction.