Mischief by fire or explosive substance with intent to destroy house, etc.Whoever commits mischief by fire or any explosive substance, intending to cause, or knowing it to be likely that he will thereby cause, the destruction of any building which is ordinarily used as a place of worship or as a human dwelling or as a place for the custody of property, shall be punished with 1imprisonment for life, or with imprisonment of either description for a term which may extend to ten years, and shall also be liable to fine.