I would not depend too much on a consultant who believes that IRCC is bluffing by sending a 'Procedural Fairness Letter'. I suggest you personally take this matter extremely seriously. You must ensure that your consultant submits the correct reply to IRCC with the correct documents.My consultant also don't have problem with my degree.
Here are my suggestions:
1. The University Registrar must issue a letter stating you were a bona fide student of XX degree program from XX year to XX year. He must include his direct number and his email address in case IRCC would like to reconfirm these facts.
2. A similar letter must be issued on official stationery by the Head of the Department for your degree. S/he must include the direct number and the email address in case IRCC would like to reconfirm these facts.
3. Transcripts of all the years for that degree. You'll need to request the Registrar to issue this pretty quickly as this could otherwise take time.
4. Colour scanned prints of your Student ID for each year
5. Colour prints of your university website (home page + contact page) + your degree program/department + any affiliations with international universities
6. Prints that your University was recognized by UGC for each of the years that you were a student there + the latest UGC recognition. If the Registrar does not give you these documents, you can search for it online (Google will help). These UGC recognitions must state that your degree program, in specific, was recognized.
7. Project/Thesis for your degree (if applicable): A copy of this, neatly hardbound (just like you would have done at the time of your thesis submission) + a letter on official stationery issued by your project guide.
8. Any industrial or project visits or training?? Then letters from the companies which you visited stating why you visited, the date, etc
9. Any other recognition from government authorities for your degree program??
10. Copies of tuition fee receipts for each year
You'll need to get this package together really quickly as you have only 30 days to submit your reply to IRCC. If your consultant refuses to accept any of these documents then I would immediately cancel the appointment for him to represent you.
This is a very serious matter which affects your personal and professional life
Hope for the best