Hi Vikas,
It is not directly possible to delete data from PSA table. Only modify records are allowed. It is advisable to use filter to skip the intended record to loading into PSA (using selection in info package) or loading further to info provider using DTP filter.
However if you have debug and replace authorization it is possible. In the data source press the tool icon to get the PSA table name. There after follow the steps from the below thread to delete your data.
How to delete table entries with SE16 in debugg... | SCN
Thanks