Mix the chicken with mustard seed paste, poppy seed paste, cashew nut paste, ginger paste, garlic paste, green chilli paste, 2tbs salt and marinate for 30mins
Now heat 2tbs refined oil add garam masala and chopped onion and fry it well
Then add the marinated chicken into it
Cook for 20mins in low flame
When oil comes out from chicken add the coconut milk and mix it well and keep it covered for 20mins in low flame
Then serve hot with nun or rice
