I'm curious too, as I hold no concept of blasphemy. Do you?
Nope!
Creation of new Gods or claiming messages from God like in Abrahamic religions.
"Bhagwan Shiva unke muhn se bolte hain". Why? If Lord Shiva has to say something then he would himself say so. Does he not have a mouth, and we, ears?
It is a direct connection to God in Hinduism and not through any mediator.
I don't see how that can be blasphemy to you. Blasphemy against what? You think all belief in God or deities is nonsense anyway, so how is it that such a particular set of ideas would be blasphemy?