bids are invited for custom bid for services - complete cleaning of all e t p tanks and releted drains up to oil and grease chamber - i)drain out water , cleaning and shifting of garbage at decreased place of all pits etp. (ii)cutting and cleaning grass and bushes around of all pits of etp. (iii)the work of putting stones, gravel and cow dung in the pits of etp. (iv)cleaning of drain from etp to oil scremer and cleaning of grass around the drain and covering the drain completely. (v) cleaning oil scremer pits and dumping the effluent (bagasse) from oil screamer pits to the bagasse yard. (vi)inside & outside whit washing by milk of lime all pits and drainage of etp.