Responses to the Indian Defenses.
I've always employed the Indian Defenses in response to 1.d4 as Black, but I'm very unfamiliar with what to do in response to said defenses as white. I have gone against Indian Defenses before, the Queens Indian Defense being the most recent one, but I was utterly destroyed as a result of my lack of experience and research. I believe a good way to start getting better at this would be to get some advice from people who know how to respond to these types of defenses.
Queen's Indian Defense
King's Indian Defense