If you've purchased agricultural land and obtained Non-Agricultural (NA) permission, it's crucial to ensure this is reflected in your land records, specifically the 7/12 document. While the 7/12 record tracks land rights and ownership, it needs to be updated to show the change in land status. Failure to do so, by continuing to pay agricultural taxes, could lead to disputes and complications, especially during future land acquisition. You should formally inform the relevant revenue department, providing the NA conversion order for mutation to update the records correctly.