Ahmedabad water cut on October 25 will reduce supply across five zones as Narmada canal fluctuations limit raw water at Kotarpur. Ahmedabad water cut will affect five zones on October 25 after raw water disruptions at the Kotarpur treatment plant, AMC said. Residents across five zones in Ahmedabad face water supply reductions on October 25 due to technical disruptions at the Kotarpur water treatment plant following Narmada canal fluctuations.