For retrieval of the supplementary hall ticket number, I would propose to follow the following:

Contact Your College:

You call up the Palasa Government College Examination department

Explain your problem. Request them to help you recover your supplementary hall ticket number

They may still maintain records for that and make necessary arrangements to get you a duplicate copy

Check the University Website:

Visit your respective affiliated university website.

Look for the student portal or helpdesk if you want to ask them about the hall ticket number.

You may have to mention your registration number or some other particulars.

Contact the Exam Conducting Authority:

-In case you wish to ask your respective board or authority in which your exams were conducted, try contacting them.  They should have a helpline or some other online portal whereby you can ask for the availability of hall ticket numbers.

Do not forget to be patient and persistent. Taking some time to obtain your hall ticket number from the concerned quarters is not unusual.