Science Express is a unique science exhibition mounted on a 16-coach AC train. It has been travelling across India successfully for the past seven years. Flagged off on 30 October 2007 by the then Hon'ble Prime Minister of India, Dr. Manmohan Singh and German Chancellor Dr. Angela Merkel, the exhibition train has since then covered over 1,22,000 km across the country, receiving more than 1.33 crore visitors at its 391 halts, in 1404 days. Science Express has thus become the largest, the longest running and the most visited mobile science exhibition in India and has created six Limca Book of Records in its journey so far.