Hi Krishna Prasad
Thank you for using Syncfusion Products.
We have analyzed your query and we were able to reproduce the issue from our side when updating the sample to the latest Xamarin NuGet which results in a mismatch of Xamarin NuGet packages between the sample and SfDataGrid assemblies. Our 18.104.22.168 version of release supports Xamarin NuGet of version 2.0. Updating the sample alone to 2.1 results in a conflict to lead to this issue. Xamarin suggests to have the NuGet references in order for all the used source and projects to avoid potential issue. You can see the software requirements of Syncfusion controls from our read me information.
Read me: https://s3.amazonaws.com/files2.syncfusion.com/Installs/v22.214.171.124/ReadMe/Xamarin_Forms.html
We also notice that the above issue is not reproduced in our 126.96.36.199 version and hence please upgrade your application to latest assemblies 188.8.131.52 to overcome this problem or keep the NuGet references in order to avoid this issue.