This is what I've used most recently and I personally think it's awesome.

1 diced large onion
3 or 4 tablespoons of ketchup
1 tablespoon of tomato puree
2 teaspoon of red chili powder
2 teaspoons of cumin seed powder
a pinch of salt
2 teaspoons of Hokan Chili oil
1/2 cup of water

You just mix everything together and grab some poppadoms and chow down!