HI Ishan,
You can use the FM REUSE_ALV_POPUP_TO_SELECT. I have also attached some link hope it will be useful.
http://****************/Tutorials/ALV/Popup/demo.htm
http://scn.sap.com/thread/786268
You can also refer the standard program .
BALV_POPUP_TO_SELECT_2
Regards,
Sivagnaesh