Hi Nimmit
After executing the report, click on Extras- Technical Info. It will tell you the Report Name
If it is a report painter, Go to GRR3 and click on Each row / column to find out the SET name.
If it is a report writer, Go to GR33 and you will find the SET names
Ajay M
PS: Request you to close your threads once your issue is fixed. you can close by marking any of the relevant answer as CORRECT ANSWER. For any workaround solution, you can specify it as HELPFUL ANSWER.. Incase no solution is available, Close your thread by marking it as "Assumed Answered" . This helps others in future to know how the issue was resolved
Hope you will do your bit for a better SCN