Since intraday orders let you trade with more funds than you have in your account, a higher risk is associated with them. A stockbroker may have to restrict intraday orders for some stocks based on regulatory or risk management reasons. In this case, you will only be able to place delivery i.e., cash, NRML and MTF orders for such stocks.
Here are a few reasons intraday orders can be blocked:
Note: Intraday orders may be blocked for any stock subject to our RMS Policy.
When and why is a stock under surveillance for unsolicited video?
When and why is a stock under surveillance for Information List (Unsolicited SMS)?
Should you trade in a stock under surveillance for high promoter encumbrance or non-promoter encumbrance?
Why is a stock put under surveillance for non-promoter encumbrance?