Arunkumar,
Hi. Based on how we understand this (#AG-3117) - Shortcut keys on List View Controls behave the same as other list controls, e.g. Complex Table List Control, on detail screens – just like tabbing to the field. If nothing is selected in the list initially, activating the control via tabbing or a hotkey will not cause a record to be selected. If something was selected, the next time you come back to that control, that same record will be selected again.
Regards,
SAP Mobile Support Team