my friend told me may be it is anthracite budgie or like that?
Although that would be really cool, he's not an Anthracite. He may have one or two dark factors, making his grey a really nice deep colour. Anthracites are much much darker than the one in your picture.
It does have the dark cheek patches that an anthracite would have, but greys can also have that. I think it is not deep enough grey to be one, however, if it was bred by an anthracite breeder they would know for sure. Anthracites can come in all colours and it is another gene that darkens the general body colour. It looks best in a grey in df form as it creates the darkest grey shade.