Hero Motocorp Ltd.-backed Ather Energy Ltd. has been valued at under $1.12 billion by the country's largest two-wheeler maker.Ather Energy filed its draft red herring prospectus with the Securities and Exchange Board of India. It will be the second pure-play electric two-wheeler company to approach the stock market.The company also witnessed one of the marquee investors, Sachin Bansal, sell part of his stake at Rs 210.73 apiece to pr...