Yes. On Crunchyroll or Amazon Prime, you can legally download episodes to your mobile device for offline viewing.

On a life-changing day, Lin Dong discovers a hidden corner of the Stone Talisman. Inside, he meets a mysterious spirit (often called Marten or Xiao Diao) who becomes his mentor. From there, Lin Dong embarks on a relentless journey to regain his family's honor, defeat the tyrannical Lin Langtian, and unlock the secrets of the ancient符 (Fu – talismans).

Here are some direct links to Martial Universe Hindi dubbed episodes:

WeTV is the primary international platform for Tencent Video content. They offer official Hindi dubbed versions for many of their top animated series.