Looking for a sci-fi detective novel. I think the cover had some sort of hindu gods on it, maybe Ganesh. The name played along the lines of Karma Detective, or Karma Drugs, or something like that. I remember that the detective used "karma" or something similar, to solve crimes... maybe. I also remember that airships were involved, as well as drug usage.
There's no connection to the Hindu gods or airships, but Jonathan Lethem's "Gun With Occasional Music" is a sci-fi noir in a future world where karma is tracked via credit card, and drug use is rampant. (I'm actually reading it now, and discovered it via this question.) The cover has no elephant, but it does have a kangaroo in a fedora.