Mix the flour with two tablespoon of mustard oil, ajwain, crushed dried methi leaves, and salt and make the dough. Also add crushed green chillies for taste.

Cover the mixture and let it rest for 15 minutes

Take a kadai. Add mustard oil. After heating add kaala jeera. Let it splitter for a while. Then add potatoes cut in cubes. Saute for 2-3 minutes.Then add salt. Again stir it. As the potatoes change colour add chopped tomato with green chillies and turmeric powder. Saute it. At last add hot water and let it cook. As the potatoes boil mash some pieces to make the curry thicker.

Add 1 tablespoon of sugar. It is optional. It is just to bring a sweet taste in the curry.

The potato curry is ready. Keep it aside.