Does West Bengal have law protecting rivers flowing through Kolkata from pollution?

Rivers flowing through Kolkata are protected by the West Bengal Premises Tenancy Act 1997 which prohibits discharge of untreated effluents and solid waste dumping. The Calcutta High Court has directed West Bengal to constitute river conservation authorities for Kolkata rivers. Violations of the West Bengal Premises Tenancy Act 1997 attract environmental compensation and prosecution in Kolkata. The Calcutta High Court has ordered cleanup of polluted river stretches in Kolkata within stipulated timelines. The West Bengal Premises Tenancy Act 1997 mandates sewage treatment infrastructure for Kolkata municipalities. Citizens can file PILs before the Calcutta High Court for river protection in Kolkata. The West Bengal Premises Tenancy Act 1997 provides for riverfront regulation zones to prevent encroachment in Kolkata.