If the upload activity status as seen above is PROCESSED, you can get the validation details of the upload activity by submitting a GET request to the Upload File API with following request headers.
This endpoint allows you to get file upload validation.
{taxable_entity_id} : taxable entity ID associated to the GSTIN.
{activity_id} : activity id given by Creating or Updating Documents API.
Sample request : https://ewb.cleartax.in/api/v0.2/taxable_entities/c5cc664c-d473-4ec5-9301-acf43349b7c4/upload_activity/02de95e9-864d-49b5-a793-5e29f718dd2b