Thanks to unicornis and Nepali Thita.

I don't wanna send my transcripts to Nepal, but WES requires the transcripts to be verified and sealed in an envelope by the TU Controller of Examination, further it needs to be directly sent from the TU Controller of Examination. But, the problem is, TU does not issue new transcripts, (Unable to understand why???) TU will only verify the photocopies of the documents if the student himself/herself is present at TU office or any of the family member has to request TU with my original documents.