Hi Shankar Parsanamoni,
Thanks for your interest in Aspose.Slides.
I hope we have discussed the mentioned requirements and possible solution in live chat session with you a while ago.
I like to share that if you wish to export grid/table and chart controls in Asp. NET as controls to PowerPoint presentation as controls using Aspose.Slides. Then I regret to share that currently this feature is unavailable in Aspose.Slides. I have created an issue with ID SLIDESNET-33990 as new feature request to investigate if the chart in Asp .NET can be exported as controls in PowerPoint presentation. A separate issue with ID SLIDESNET-33991 has been created as new feature request to investigate the possibility of exporting grid/table to PowerPoint presentation as table.
Now, coming to possible solutions. Aspose.Slides allows the complete support for creating and managing charts. One option can be that you may parse the chart data in Asp .NET and generate the similar one in Aspose.Slides. As you have also mentioned in your requirement you wanted to export chart or grid/table to images. You can export them to images using any standard methods and can add them in PowerPoint slides as images. Please follow the links below for your convenience.
Please share, if I may help you further in this regard.