nice one! It's an amazing feeling isnt it?
Good work. If i was you i'd cook the same recipe again next time so you get consistent and get to understand how everything cooks.
Hing does have that kind of strength, like fresh curry leaves, so it could be a factor but it sounds like you cracked the cooking of the whole dish! How did it taste?
Did you say you went out for a beer and then came back to the house later? This has an effect as your sense of smell gets dulled when cooking strong spices.