What are the risks related to NTPC Green Energy's ₹10,000 cr IPO?

NTPC Green Energy on Wednesday filed draft papers for its ₹10,000 crore IPO. One of the key risks mentioned in the papers is the firm's reliance on offtakers, the loss of whom could adversely impact the business. Dependence on third-party suppliers, concentration of renewable energy projects in Rajasthan and significant competition are among other risks.