India's coal industry celebrated the return of its major conference after a three-year pandemic hiatus by presenting a bullish view of demand, rising supply from new mines and strong demand for imports."King coal is coming back and coming with a big bang," Anil Kumar Jha, the chairman of Jindal Power Ltd., told the Coaltrans India conference, held this week for the first time since February 2020.The sentiment was echoed by virtually every speaker at the event, although there was a wide variety of views as to how successful India will be at ramping up coal domestic coal output…