Boil the potatoes.
Take 1 cup oil in the pan and add fry the potato cubes and then take them out.
Heat some oil in the pan and add in 4 chopped garlic and fry them till golden brown.
Add in cauliflower, 1 tsp turmeric and some salt. Stir fry it.
Take 8 green chilies, 1 tsp white cumin , 8 red chilies and grind it. And then add it in the cauliflowers and mix it.
Add in the fried potatoes, lemon juice, 2 tbsp mustard powder and 2 tbsp chopped ginger and cook it for 5 minutes.
Garnish it with chopped coriander and serve.