To get the transcripts, you will need to go to the PTU Jalandhar campus. Visit the admission department and ask for the same. You need to fill out a form and pay a nominal fee. After you submit the form with all required documents, the transcripts will be dispatched to the address that you have mentioned on your form. You will get the transcripts via registered speed post.
One of my friends works at the admin office and here are some tips I can let you know, which might help you understand better.
If you need Transcripts for ECA evaluation or other purposes, you need not visit PTU Jalandhar if you have done your degree from PTU Jalandhar or its affiliated colleges. The process costs around INR 4000 including the courier charges.
The process is as follows-
After the fees are paid to PTU, it will take around 10 working days and will upload all the required documents attested on their official website which will be available to be viewed. It will be a PDF file with all the documents scanned and attested.