Par boil potatoes in water with a tsp of salt added.
Peel the boiled potatoes .
In a big bowl add yogurt, mustard oil,1 tsp lemon juice and all the spices in it.
Mix well and add the boiled potatoes in it.
Cover the bowl and let the potatoes marinate for 2-3 hours (or overnight in the refrigerator if you want to plan ahead )
If you want to make them instantly then add 1 tsp of dry roasted gram flour/besan in it.
Take a wide and thick bottom pan or a non stick pan and add the potatoes in a single layer in it.
let the potatoes cook on medium high flame in the pan,stir occasionally.
When the marination almost dries up and potatoes get roasted then remove from the pan.
Drizzle some lemon juice and serve hot .