Heat oil in a Pan and add Fennel Seeds, Cumin Seeds, crushed Coriander Seeds, and Ajwain.
Add the chopped Onions to the roasted spices and fry until they turn golden. Then add the Ginger Garlic paste and fry.
Add the chopped tomatoes and some water and cook until the tomatoes become soft and Oil comes to the surface.
Once Oil floats to the top, add the rest of the Spices and fry.
Add the mashed potatoes and fry until they start sticking to the bottom of the pan. Then add water and let boil on a high flame.
Once the Curry boils, mash some more potatoes with a spoon. Then add crushed Kasuri Methi and chopped Green Coriander and cook on medium flame until oil floats to the top.
Check Salt and Spice and then remove them from the fire.