ॐ नमो भगवते वासुदेवाय
Om Namo Bhagavate Vasudevaya
Om represents the primordial sound of the universe.
Namo means Salutation, worship
Bhagavate refers to something divine.
Vasudevaya : Name of Krishna, Krishna is also known as Vaasudeva (Krishna), because he was the son of Vasudeva. In the Bhagavad-Gita, Arjuna called Krishna by the name Vasudeva multiple times.