Stocks can get delisted from the stock exchange for a variety of reasons but the bottom line being that they do not meet the basic criteria of the listing agreement signed between the company and the stock exchange. Some of the reasons for delisting of a stock include voluntary delisting by the company, delisting due to company going into liquidation, mandatory delisting for not meeting the listing criteria of the stock exchange etc. Here is a list of companies that have got delisted from the NSE over the last few years along with the reasons for the same.

As can be seen from the above list, a large number of companies have been delisted in the last few years. When a company delists it ceases to be traded on the respective stock exchange.