If you want to prepare homemade achaar masala then in a bowl mix mustard oil, roasted fenugreek seeds, mustard seeds, cumin ...

(If you can't find them, try lemons instead.) For the pickle, heat the oil ... mix together the ingredients and rub the paste into the chicken, working it in thoroughly to cover all the flesh ...

Submerge the radishes and kombu strips in the brine and leave in the fridge to pickle for at least 8 hours or overnight. To make the chicken karaage ... (CAUTION: hot oil can be dangerous.