Hello Sooraj
SAP Standard is using ADDR_SINGLE_SAVE FM to save data.You shall use other FM ADDR_GET and pass address number to fetch the data stored in buffer. This FM i found in same function group SZA0 where ADDR_SINGLE_SAVE is created.
If it does not work on you can use Assign statement with assign (SAPLSZA0)IADRC[] to get the data in internal table.
In your debugger mode invariable name input this (SAPLSZA0)IADRC[], it show you the value.
Thanks
Nabheet