This is supposed to be a really fiery curry. Normally chile peppers are used in this curry, however I added green chillies as per my family's spice capacity. Add more if you can take it! Instead, I adjusted on the pepper. :)
If you like cumin flavor, you can increase it to 2 tsp of seeds or 3/4 tsp of powder. I have a cumin averse family, even though I love the flavor, and therefore added bare minimum.
As the curry sits, it thickens. Add a little hot water if you want it to be slightly loose in texture.