It is not necessary that you already knew about interior designing or not. You can partner with a professional interior designer to market and manage their business. This business requires less investment to start your own firm. In cities handicraft products are becoming very popular as people are very much interested in decorating their homes with craft products.
You should find a good supplier of craft products. This kind of business could be done by promoting your products online through your website. Servicing your customers by designing and decorating their homes will fetch you good income. For interior designing business idea you can refer carafina.in, homelane.com and designarcinteriors.com.