The Rs 429-crore IPO of Exicom Tele-Systems was fully subscribed within hours of opening on February 27, with retail investors and HNIs lapping up their quota of shares. The portion set aside for retail investors was booked three times, while high net-worth individuals (HNIs) picked 1.17 times their allotted quota of shares. About 75 percent of the initial public offering of the Gurugram.