Hi Shayam,
Is it absolutely necessary that the Video be hosted on ServiceNow? The reason is, video's are large and take up a lot of space on the Database. I'm not sure how large your video is, but that could be a problem. Is it possible to host this video on another Video hosting website (YouTube, Vimeo, DailyMotion)?
What are you trying to do with the video once it is uploaded? Embed it in a knowledge article?
If so, here are some links to help you with that:
Embed videos in HTML fields
How to show embedded documents in KB articles either from a cloud source or from an attachment.
If my answer was helpful, or solved your issue please mark it as Helpful or Correct
Thanks!
Josh
