Rat-Hole Mining Important for Prelims: Silkyara Tunnel, Rat Hole Mining, NGT Important for Mains: Prevalence of Rat Hole Mining in North Eastern States, Reasons for Ban on Rat Hole Mining, Environmental and Safety Concerns from Rat Hole Mining 30 Nov. 2023 Why in News: Recently, rescue workers successfully rescued 41 workers who were trapped in the Silkyara Tunnel in Uttarakha...

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