At the Sikh temple in Delhi with appropriate headgear. The spokesman there was very helpful and informative, even if our conversation got off to a slightly disjointed start; as I heard it:
Sikh: Do you smoke cigarettes? [He actually said: Do you know about Sikhism?]
Me: No, I don't smoke.
Sikh: What would you like to know about cigarettes?
Me: What would I like to know about cigarettes?
My wife: Sikhism.
Sikh: Yes, we talk about Sikhism now, not cigarettes.
Me: Oh, Sikhism. I don't know much about it.