Retrieving the exact hall ticket number from PGCET 2022 might be difficult, but you can still try a few approaches to access information related to your exam appearance:

Find out which organization conducted the PGCET 2022 exam. It could be a state government agency, a university, or a testing body like KEA (Karnataka Examinations Authority) for Karnataka PGCET. Search for the exam authority's website and look for a contact us section. This might provide phone numbers, email addresses, or enquiry forms.

Contact the exam authority and explain that you've lost your PGCET 2022 hall ticket number. Provide details like your name, the program you applied for, and the year of the exam (2022).

The exam authority might be able to retrieve your exam details based on the information you provide. They might share your roll number or other relevant information associated with your application.

I hope it helps!