First, it is not always necessary to raise funds; one can always bootstrap. What does an investor look for while funding? Primarily three things: team, the idea and the trump card -- traction. Angel investors in India typically take up 20-30% of equity for investment worth INR 1-3 crores. This is relatively a large chunk of the company, but it is so because hardly one of the 10 companies an angel invests in will give returns and most of the money has to be made via these deals.
You can read more here: https://yourstory.com/2014/03/startup-valuation-equity-dilution
Besides if you do have any questions give me a call: https://clarity.fm/joy-brotonath