From the perspective of an Angel investors, several things are looked upon in startups before investing in them like the theme of the startup, product, what kind of problems they address, target market and more. Its important for startups to know how to grid business market which is a holistic model in terms of understanding the market size, revenue, cost structure, how it is going to serve the market to make business feasible, said Sunil Gupta, Angel Investor , CEO & Director Innovate digital solutions . Startup is more of a research and discovery model where they have to see how the business model succeeds, he added