Rinse and cook the rice as usual.

Peel and dice the potato. Chop the onion and tomato.

Heat oil in a pan, add cumin seeds, then onions. Sauté until golden.

Add tomatoes, cook until soft.

Add potatoes, salt, turmeric, and chili powder. Mix well.

Add water, cover, and cook until potatoes are tender.

Serve the potato salan over hot rice.