Delisting is the process by which a company’s shares are removed from a stock exchange, making them no longer available for public trading.
When a company is delisted, its shares stop trading on exchanges like the National Stock Exchange or Bombay Stock Exchange.
Delisting can happen either voluntarily (by company choice) or compulsorily (by regulatory action). In India, it is governed by regulations from the Securities and Exchange Board of India.
"A company buys back all public shares and removes itself from the stock exchange—this is delisting."