Wash and peel 500 grams of potatoes, then cut them into long, thin strips (approximately 1 cm thick).
Soak the potato strips in cold water for 30 minutes to remove excess starch. Drain and pat dry with a clean kitchen towel.
Heat oil in a deep frying pan or kadai to 180°C. Make sure there is enough oil to completely submerge the potato strips.
Fry the potato strips in batches, ensuring they don't stick together. Cook for 5-6 minutes or until they turn golden brown and crispy.
Use a slotted spoon to remove the fries from the oil and place them on a plate lined with paper towels to absorb excess oil.
While the fries are still hot, sprinkle them with 1 teaspoon of salt and 1/2 teaspoon of red chili powder (optional) for seasoning. Toss gently to coat evenly.