AMBALA, April 19: The Ambala railway division has been awarded the best maintenance of carriage and wagon depot shield for the year 1998-99 by Northern Railway. Divisional Railway Manager Vijay Kumar said the inter-divisional bridge shield, best maintenance running room shield and best maintenance of railway hospital shield were also awarded to the Ambala division. One officer and 11 employees of the division were awarded by the GM, Northern Railway, for best performance.