You can search for "Motu Patlu" on YouTube and use the Filters option to select Creative Commons . These videos are uploaded by users who have technically granted others permission to reuse their content. However, be cautious: if the original uploader didn't actually own the rights to the cartoon, you could still face a copyright claim from the actual owners (Nickelodeon or Cosmos-Maya).
Do not just repost the video. Add your own voiceover, commentary, or significant editing. Use short clips: Avoid uploading full episodes. Motu Patlu Cartoon Video Download No Copyright
(Best for no-copyright cartoon videos)
You can download legally, but not as a copyright-free file . These downloads are for personal use only and cannot be re-uploaded, edited, or used commercially. You can search for "Motu Patlu" on YouTube