Clients will not be able to buy stocks that are in GSM stage 2 or higher. These stocks require Additional Surveillance Deposit (ASD) of 50% of the trade value or more. The ASD margin will remain blocked by the exchange for a period of at least 2 months even after the stock is sold.
The restrictions are only applicable to fresh buy purchases as part of the Zerodha policy. Clients can still sell the stock from holdings if they hold a GSM stage 2 and above stock in their account. To learn more about GSM, see
What does GSM mean?