Roast gram flour in 1 tsp oil at low to medium heat till slightly golden color. Take 1/2 cup yogurt or curd in muslin cloth and hang it till water the water stops dropping from cloth. Wrap it in to 3 layers of kitchen paper towel along with cloth so that it absorbs remaining moisture from the curd and would make curd more thicker. In mixing bowl, add hung curd, gram masala, salt, tandoori masala, mint & coriander chutney, roasted gram flour, garlic & ginger paste, lemon juice and mustard oil. Mix all ingredients very nicely.