Dear hthakkar78,
Thanks for considering Aspose.Slides for RS.
Are you getting extra slide for every report? Probably this is a bug.
Please provide us these things, you can zip all these files and attach with your post here.
1. RDL report.
2. Example of presentation generated with Slides for RS.
3. Example of the same report generated with standard Pdf renderer.
Many Thanks and Kind Regards,
Shakeel Faiz
Support Engineer
Aspose Tyumen Team