BJP/VHP Issues Fatwa against Karunanidhi

The VHP kendriya margdarshak mandal leader and two-time BJP Lok Sabha member issued the ‘fatwa’ in Ayodhya in which he said whosoever chopped off the head and tongue of the DMK president would be gifted with gold by the saints of Ayodhya.

- Source

My questions:
1) I do not know the legality of fatwa, but doesn’t this constitute as a threat, attempt of murder, and hiring assasins for a cold blooded murder? If so why is not this BJP MP not arrested for death threat?
2) By issuing fatwa, doesn’t VHP becomes exactly the organization that they truly hate?