Heat a frying pan with vegetable oil and fry the chicken until golden brown, then set it aside.
In the same pan, add vegetable oil and fry the onion until translucent. Add ginger root, garlic and fry for another 1 minute.
Add tomatoes and spices to the onion and mix well. Simmer the resulting mixture for a few minutes.
Pour the sauce into a blender, add yogurt and blend until smooth.
Place the chicken in a frying pan, pour in the prepared sauce, stir and bring to a boil.