CBDT to validate Unique Document Identification Number (UDIN) Posted on November 30, 2020November 30, 2020 by admin CBDT to validate Unique Document Identification Number (UDIN) generated fromICAI portal at the time of upload of Tax Audit Reports https://www.incometaxindiaefiling.gov.in/eFiling/Portal/StaticPDF_News/validate_UDIN_generated_from_ICAI_portal_26_11_20.pdf