https://www.nseindia.com/content/circulars/COMP33643.zip
https://www.nseindia.com/content/circulars/COMP31391.pdf
https://www.nseindia.com/content/circulars/COMP32988.pdf
Point number 26 of Annexure II states this point:
It is just a matter of time that everyone is asked to stop it. If it is a really small broker who is still not on the radar, maybe it will take longer.