India is a second largest producer of leather, and being so, leather production and dyeing significantly contribute to pollution of water resources in India. Consistent dyeing of leather is difficult due to the unique nature of the raw material (matrix of collagen fibers), thus leather dyeing and finishing involves numerous wet chemical treatments having huge environmental impacts. Considering this, group of researchers in India have explored atmospheric pressure non-thermal plasma treatment to improve natural dyeing of leather in order to provide an eco-friendly alternative for wet-chemical treatment and dyeing using a synthetic dyes.