A cover order is an intraday order type where you must set a stop loss at the moment you enter. The broker links the two, so the position always has a defined exit on the wrong side. Because the maximum loss is known, brokers historically offered more leverage on cover orders than on plain intraday orders, though margin rules have changed and the difference is now small or gone at many brokers. Suppose you buy 200 shares of SBI at ₹800 with a cover order stop at ₹795. Your defined risk is about ₹1,000 before slippage. You cannot cancel the stop, only modify it within limits, and the whole position is squared off before the close. Cover orders enforce a habit that every trader should have anyway: decide where you are wrong before you enter.