An authorization letter for HEC is a legal document which gives permission to a third person to go and attest the degrees and transcripts on your behalf. Duly filled-in Application Form and Challan Form or Courier Receipts in case attestation is applied through courier service.Your Name's CNIC number. One of the functions of the Ohio Secretary of State is to issue Apostilles and Authentications. HEC Pakistan has refused to attest my degree. Is there any other way to get my degree attested for Canadian immigration? I have applied for HEC attestation through TCS, sent the documents 12 days back ,they didn't reach HEC yet, I've heard that it takes a month to reach HEC. For details of AAF action in the Mediter- ranean area, see Pages 9 and 20 of this issue. Complete contract documents with drawings and specifications. Other reports from Board members concerning attendance or participation in a board or.