Hi Shivkumar,
Thanks for using syncfusion products.
We have analysed the sample provided by you and we found that there is some issue with rendering control in view. Please refer the below code snippet to use Accordion control,
[View]
@{Html.Syncfusion().Accordion("AccordionFeatures", "accordionmodel").Render();}
We have also modified the attached sample and the modified sample can be downloaded from the following link,
SampleTools_Accordion-1599591720.zipKindly try the sample and let us know if it works.
Regards,
Varalakshmi R.S