Mura was a very powerful asura (demon) mentioned in Hindu scriptures,[1] who served as a general in Narakasura's army.

While he was a youth, Mura once came across a heap of dead bodies of the asuras and danavas who died in battle against the Devas.

But upon reaching there he came to know that Shri Krishna had been born as an incarnation of Vishnu and was about to attack the Kingdom of Pragjyotisha where another powerful danava King Narakasura was ruling.

But Shri Krishna and Satyabhama on hearing about the misdeeds of Naraka decided to go and defeat him in battle and emancipate the 16,000 captive princesses.

So he took Satyabhama (incarnation of Bhudevi) along with him to defeat the combined forces of Mura and Narakasura.