How to know updates, actions on surveillance stocks

General
1

If an stock is already in ASM, GSM ESM list or if a stock is not in surveillance list but afterwards due to some reason exchanges put it into surveillance list.

As on exchanges website we only get the notices that company is put into surveillance it might be of high pledged promoter Holdings, default, late submission of Financials or any other reason.

Then for such stocks how to get to know the exact reason & further update, actions on such stocks?

How the stocks are removed from surveillance list?

2

follow the company’s official announcements and press releases, q-concalls. if it has to come, then it will come from the company only (even to the exchange).