The initial public offering (IPO) of RR Kabel will open for subscription today, 13 September, and close on 15 September. The Mumbai-based wire and cable manufacturer aims to raise Rs 180 crore through a fresh issue, and Rs 1,784 crore through an offer for sale, according to its red herring prospectus filed with the Securities and Exchange Board of India (SEBI) on 6 September.