I want to find the list of comapanies delisted on NYSE exchange and the companies which will be delisted, is there any website which tracks it on a real time basis?
A notification given to the SEC by a national securities exchange telling of the removal from listing on that exchange and registration of matured, redeemed or retired corporate securities. SEC Form 25 is required by Rule 12d2-2 of the Securities Exchange Act of 1934. A security is considered to be delisted 10 days after the filing of Form 25 with the SEC.
You can get the list of the most recent filings from EDGAR