Shares of Sahajanand Medical Technologies are set to make their debut on the BSE and NSE on Friday, with grey market trends pointing to a potentially modest listing gain. The IPO is commanding a grey market premium (GMP) of around 5%, indicating positive but measured expectations ahead of its stock market debut.The Rs 475.48 crore IPO comprised an offer for sale (OFS) of 1.38 crore shares. Since the issue was entirely an OFS, the company will not receive any proceeds from the offering.