Stocks that are placed under GSM (Graded Surveillance Measure) by SEBI and Exchanges in order to enhance market integrity and safeguard interest of investors, have been introducing various enhanced pre-emptive surveillance measures such as reduction in price band, periodic call auction and transfer of securities to Trade for Trade segment from time to time. 

Regulators & Exchanges want to protect, alert and advise investors to be extra cautious while dealing in these securities and advise market participants to carry out necessary due diligence while dealing in these securities.

Hence stocks marked as or placed under GSM are not allowed to be traded via Dhan.