KJ Nath, Gourishankar Ghosh, Sovandeb Chattopadhyay & Dr Bindeshwar Pathak, Founder, Sulabh International during the Sulabh International Social Service organised a seminar on “Sanitary Protection & up-gradation of traditional surface water sources in rural West Bengal for producing Sulabh safe water for drinking & cooking purpose: An innovative approach” in Kolkata on Tuesday, 04December 2018.
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