Gem Bids For Custom Bid For Services - House-keeping Of Pit Lines Covered Sheds Yards And Office Buildings At Secunderabad Sc And Charlapalli Chz Coaching Depots For A Period Of 2 Years Sch A Cost Of House-keeping Activity At Sc Coaching Depot As Per Scope.. Custom Bid For Services - Sch B Cost Of House-keeping Activity At Chz Coaching Depot As Per Scope Of Work