You have to fill in the Application for duplicate DMC in PTU and attach the following documents
Duplicate Degree Certificate/DMC(s) will be issued within 07 days of getting the prescribed form and fee.
You can do it online via an online portal or you can visit the campus for the same. This is the only option that you have. The documents that you need to carry with yourself are as follows:
Along with this, ask them to give you a written declaration stating that you are a student of the college and have cleared all the subjects of the semester and that you require a duplicate DMC.