Tender for Operation And Maintenance Of Distribution System And Rising Main Pipeline (ci/di/upvc) Of Different Ground Based Piped Water Supply Scheme For Monipota W/s, Joania W/s, Mahishnengra- I W/s, Mahishnengra- Ii W/s, Badkulla -i W/s, Badkulla -iiw/s .... in Kalyani - West Bengal

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