Indian stock markets will see the launch of 10 IPOs in the week starting September 23. Manba Finance and KRN Heat Exchanger and Refrigeration will launch their issues in the mainboard segment. In the SME segment, IPOs of Rappid Valves, WOL 3D India, Unilex Colours, TechEra Engineering, Forge Auto, Sahasra Electronics, Divyadhan Recycling and Thinking Hats will open.