boil and peel potato make into small pieces

1 big onion, 4 garlic pieces, small ginger piece, 1 clove, 1 cinnamon stick
- grind into (a little dilute) paste

boil potato + 2 sliced tomatoes + salt + turmeric + above liquid paste + 
water in a frying pan for a while.
Add a little tamarind paste.
Add coriander at the end.
(optional: add curd at the end)