You have the option of freezing the securities in your account to make sure that they can’t be sold for a specific period of time or until you ask us to unfreeze the securities. You will need to fill up a freeze/unfreeze request form and send the physically signed form to our office.
Instructions to fill out the freeze/unfreeze request form.
Frozen for debit implies that the holdings cannot be sold and frozen for credit, so more units of the security cannot be bought. If you only want to place a restriction on selling the holdings, select debit.
It should take anywhere from 48 to 72 working hours to process the freeze/unfreeze request.
All securities in your demat account (like stocks, mutual funds, G-secs, etc.) can be frozen.
Read More: How to freeze stocks in my demat account?