I think that Demons of the Punjab is actually quite a good episode. It presents an interesting historical story focussed on a really interesting period of history that I do not know enough about. There are interesting characters and Yaz gets a bit of development which is nice. I also feel that it's well directed with a few standout shots. The aliens feel a bit forced and don't completely make sense. I think that the episode would have worked better as a pure historical. However, the episode isn't bad as is and is probably one of my favourites of the era.