Tender For providing of cleaning, sanitation and disinfection service - outcome based - office/commercial/institutions/residential; dewatering desilting scrubbing removal of sludge and dirty water disinfecting with treatment of uv radiation for overhead domestic watertanks..,cleaning, sanitation and disinfection service - outcome based - office/commercial/institutions/residential; dewatering desilting scrubbing removal of sludge and dirty water disinfecting with treatment of uv radiation for underground fire watertanks ..,cleaning, sanitation and disinfection service - outcome based - office/commercial/institutions/residential; dewatering desilting removal of sludge and dirty water from two rain waterharvestingtank of capacity 6 kl surface area 20 sq meter rectangul..,cleaning, sanitation and disinfection service - outcome based - office/commercial/institutions/residential; cleaning of oil grease chamber with super sucker truck; basement 2 & outdoor