The government of India invited "The tender for fitting of drip irrigation system in the garden". The tender will be awarded through eProcurement. A committee has been formed to revise the applications. After a consensus among the committee member two bidders, Mr. X and Mr. Y were finalized for the next stage. They both were given some special instructions.

• The instructions:
  1. Bidder should do Online Enrolment in the Portal. Then the Digital Signature enrollment has to be done with the e-token, after logging into the portal.
  2. The e-token that is registered should be used by the bidder and should not be misused by others.
  3. DSC once mapped to an account cannot be remapped to any other account. It can only be inactivated.
  4. The Bidders can update well in advance, the documents such as certificates, purchase order details etc.
  5. The BOQ template must not be modified/replaced by the bidder and the same should be uploaded after filling the relevant columns, else the bidder is liable to be rejected for that tender.
  6. Bidder, in advance, should prepare the bid documents to be submitted as indicated in the tender schedule and they should be in PDF/XLS/RAR/DWF formats. If there is more than one document, they can be clubbed together.
  7. The bidder should arrange for the EMD as specified in the tender. The original should be posted/couriered/given in person to the Tender Inviting Authority, within the bid submission date and time for the tender.
  8. The bidder reads the terms and conditions and accepts the same to proceed further to submit the bids.

During this stage, Mr. X was rejected for the tender. Which of the following mistake might have been done by Mr. X that led to his disqualification?