Farmers of Karur district, who are plagued by industrial pollution for several decades now, have decided to intensify their struggle to put a permanent end to the menace. The affected farmers have decided to convene a regional conference in Karur, Erode and Tirupur districts on January 28 and chalk out a strategy to counter the pollution threat to save farm lands and farmers. Effluents discharged by textile and allied industries in Karur, Tirupur, Erode and Coimbatore districts have wrought havoc in Amaravathy, Noyyal and Cauvery rivers, which in olden days enriched Kongu region in general and Karur district in particular.