bids are invited for custom bid for services - internal external mechanized coach cleaning at pit washing line and watering of coaches primary coaches ac nac , custom bid for services - mechanized cleaning of coaches in platform return terminal attention trains and watering of coaches terminal attention ac nac , custom bid for services - mechanized cleaning of washing lines including pits sickline office complex and depot complex surrounding area and complete cleaning of depot complex approx area 23802 sq mtr for hw on daily basis , custom bid for services - mechanized cleaning of washing lines including pits sickline office complex and depot complex surrounding area and complete cleaning of depot complex approx area 2252 sq mtr for nbd on daily basis total quantity :