My mother is a teacher at Amity university and my brother is also studying here. So perhaps I can help you with this.
It will take time to get a transcript from there. You may either go to the institute by yourself or give an authority letter to a friend or family member who can collect the official transcripts on your behalf.
Your documents must be sealed in an envelope and stamped or signed by the required authentication officer at the institute.
Make a note of your WES reference number as who knows maybe you need it for further process as well.
It will be better for you to contact the NV documentation rather than depend on the university. In a short period of time, they provide you with a transcript. Their work is very professional, and their prices are also fair. You can go there.