Ballast weights provided in a WAG9 based at Lallaguda.This is placed just behind the cab and there is a smaller weight on the opposite side of the corridor too and an identical set is provided behind the other cab.The weights look rather crude compared to the otherwise well-finished loco and seem to have been added by LGD shed rather than CLW.Are these addional weights provided in all WAG9 locos or is it an experiment to improve adhesion? Such weights are absent in the WAP7.