Online Instruments (India) Ltd has filed draft papers with the Securities and Exchange Board of India to launch an initial public offering aimed at raising Rs. 750 crore through a fresh issue of equity shares. The proposed public issue will also include an Offer for Sale of up to 57.10 lakh shares by promoters Anita Mahesh Bellad and Rajeshwari Shivanand Mahashetti. The Bengaluru-based company may additionally pursue a pre-IPO placement worth up to Rs. 150 crore before the issue opens.