<h1>RBI to Launch Field Trial of One Billion Rs. 10 Polymer Banknotes in Five Cities for Enhanced Durability.</h1> The Reserve Bank of India, in consultation with the Government of India, plans to introduce one billion Rs. 10 banknotes made from polymer substrate in five cities as a field trial. This initiative aims to extend the lifespan of lower denomination banknotes. The polymer notes, made from non-fibrous and non-porous materials, are considered more environmentally friendly than traditional paper currency, as confirmed by a study commissioned by the RBI. The move is not primarily intended to combat counterfeiting but to enhance the durability of the currency.