The X class steam locomotives that power trains between the stretch of Coonoor to Mettupalayam of Nilgiri Mountain Railway are wonderful machines which are kept running by equally wonderful technicians of Indian Railways who work diligently at the steam loco workshop at Coonoor. Unlike the Light and Sound shows at various archaeological sites, watching these beauties is a Sight and Sound show. Mechanical engineering at its best ! Any youngster who watches these Swiss origin machines up close is bound to be inspired to be a fine mechanical engineer or a technician. (2007)