South Eastern Coalfields Limited (SECL), a wholly owned subsidiary of Coal India Limited, has filed its Draft Red Herring Prospectus (DRHP) with the Securities and Exchange Board of India (SEBI) for an initial public offering (IPO). The proposed IPO will be an offer for sale (OFS) of up to 66.81 crore equity shares by promoter Coal India Limited.The equity shares will have a face value of Rs 2 each.