Faced a funny problem with bracket orders today. The target got achieved (after I had modified it) but the stoploss order didn't get cancelled automatically. Called them, they said that I had manually cancelled the target order. The problem got solved with their RMS team squaring off the pending order.
But the point is, how come a user was able to cancel a bracket order (the target order) ?? Shouldn't happen.
This is just for the members' information. Screwups can happen with auto/algo trading too.