It's a spice blend of garam masala, ginger garlic powder, white pepper, salt and mango powder. If you have this masala, you can directly add it to make white karahi recipe. Alternatively, you can make this spice seasoning at home and store it in pantry for 6 months. When you make white karahi use it instead of using all the spices individually. In store bought, white karahi masala, mango powder is also used to add a sour taste in karahi.