The initial public offering for TBO Tek opens for subscription today (May 8). The issue is a mix of a fresh issue of 43.48 lakh shares and an offer-for-sale of 1.25 crore shares. The company will finalise basis of allotment by May 13 and shares will be credited to demat accounts by May 14. TBO Tek IPO will be listed on the NSE and BSE on May 15.