You can put more vegetables if you want to. Maybe celery, eggplant, string beans You can also have a different slice of veggies, if you want - it's up to your liking. :)
You can put more coconut milk/cream... or less. You can use canned coconut milk/cream, maybe you just have to add water, too.
This is not a spicy dish but if you cut the green chili and add it with the carrots and potatoes.
I always use McCormick curry and chili powder. I haven’t tried using other brands. Using other brands of powders may alter the taste. You can use your preferred brand, if you wish.
As to the chickpeas, I used dried chickpeas. I soaked them in water overnight. The next day, I drained the chickpeas and washed them. If you want to add chickpeas, you can also use the canned one and add it in the middle of cooking.
I always eat this with rice and boiled eggs.