<span style="color: #222222;">Punjab Chief Electoral Officer S Karuna Raju has asked all political parties to use eco-friendly material for campaigning during the Lok Sabha election.</span><br />'' <br />'' <span style="color: #222222;">In a statement in Chandigarh, Mr Raju said the Ministry of Environment, Forest and Climate Change had approached the commission with the request to direct political parties to use eco-friendly material.</span><br />'' <br />'' <span style="color: #222222;">He asked the parties not to use single-use plastic material as it causes adverse impact on human health and environment.</span><br />''