How do i get the यू. आर्. एल from youtube?

Im not too sure that I understand your question.
From what आप wrote, it seems to me that you're asking how do आप get a यूट्यूब यू. आर्. एल that आप had already viewed?
Check in your "Latest history" box up the चोटी, शीर्ष of your homepage. That should help.