bids are invited for months, five in a year and major overhauling servic.. , annual maintenance services for water purification and conditioning system (version 2) - drinking water cooler, amc brand shriram usha and capacity 40 or 80 litres per hour, routine service once in two months, five in a year and major overhauling ser.. , annual maintenance services for water purification and conditioning system (version 2) - drinking water cooler, amc brand shriram usha and capacity 40 or 40 litres per hour, routine service once in two months, five in a year and major overhauling ser.. , annual maintenance services for water purification and conditioning system (version 2) - drinking water cooler, amc brand sidwal and capacity 150 or 400 litres per hour, routine service once in two months, five in a year and major overhauling service.. , annual maintenance services for water purification and conditioning system (version 2) - drinking water cooler, amc brand sidwal and capacity 150 or 150 litres per hour, routine service once in two months, five in a year and major overhauling service.. , annual maintenance services for water purification and conditioning system (version 2) - drinking water cooler, amc brand sunrise aquacoolers and capacity 150 or 150 litres per hour, routine service once in two months, five in a year and major overha.. , annual maintenance services for water purification and conditioning system (version 2) - drinking water cooler, amc brand sunrise and capacity 40 or 80 litres per hour, routine service once in two months, five in a year and major overhauling service.. , annual maintenance services for water purification and conditioning system (version 2) - drinking water cooler, amc brand sunrise and capacity 40 or 40 litres per hour, routine service once in two months, five in a year and major overhauling service.. , annual maintenance services for water purification and conditioning system (version 2) - drinking water cooler, amc brand voltas and capacity 150 or 150 litres per hour, routine service once in two months, five in a year and major overhauling service.. , annual maintenance services for water purification and conditioning system (version 2) - drinking water cooler, amc brand voltas and capacity 40 or 80 litres per hour, routine service once in two months, five in a year and major overhauling service .. , annual maintenance services for water purification and conditioning system (version 2) - drinking water cooler, amc brand voltas and capacity 40 or 40 litres per hour, routine service once in two months, five in a year and major overhauling service .. , annual maintenance services for water purification and conditioning system (version 2) - drinking water cooler, amc brand voltas and capacity 20 or 20 litres per hour, routine service once in two months, five in a year and major overhauling service .. , annual maintenance services for water purification and conditioning system (version 2) - potable water purification system reverse osmosis or uv based, amc brand aquaguard and capacity 1 litres per minute, routine service once in two months, five in.. , annual maintenance services for water purification and conditioning system (version 2) - potable water purification system reverse osmosis or uv based, amc brand aquamall and capacity 200 litres per 2 /