Accumulated GTDt orders are  sent for execution  by AxisDirect from 9:15 am onwards.  Customer also has the option to initiate GTdt order during pre-open session (i.e. from 9:00 am to 9:07 am). However from next trade date onwards the previously unexecuted GTDt orders will be part of accumulated GTDt orders and will be sent for execution by AxisDirect to Exchange from 9:15 am onwards.