There could be multiple factors for choosing the unlisted companies before investing depending upon the risk profile of the investors and various macro and micro economic factors which may be impact those investments, some of which are listed below for your ready reference (though this is exhaustive list):

• Probability of the share getting listed in the nearby future;

• Value of the stock whether it is undervalued or overvalued vs its peers set;

• Competitors Analysis;

• Growth dynamics and innovative and disruptive business model;

However, we recommend all investors to consult their financial advisors prior to taking any investment decision.