SharePoint 2013 migration Issue with WideListSchema

Hi

I am trying to migrate from SP 2007 to SP 2013 by the middletier SP 2010. The SP 2007 contains a custom list consisting of 256 columns.

While migrating to SP 2010, it works fine but when in SP 2013 its giving the below error.

I have tried to delete the custom list and then done the migration but still the issue persists.

Category :

WideListSchema
Error : True

UpgradeBlocking : True
Message :

The list 'XXX List' at URL '/sites/XXX/Lists/XXX List' has a schema that is
incompatible with this version of SharePoint. Remedy : Delete some fields from the list 'XXX List'."

Any help will be really greatful.

Thanks,
Srimant