Mix all the ingredients (except chicken) for the marinade in a bowl. Taste it, adjust flavour if needed.

Grill the chicken on stove top with butter.

For the gravy, add oil to a pan.

Add cashew nuts and roast till they are light brown.

Add onions and cook till translucent.

Add the ginger-garlic paste and cook till the raw smell fades.

Add the tomatoes and cook till oil separates/gets mushy.

Let it cool down and then blend to a paste.

To finish the sabzi, add butter to a pan.

Add the whole spices (cumin, cinnamon, cardamom, clove) and cook till it sizzles.

Add onions, ginger-garlic paste and green chilli slits and cook.

Add tomato ketchup/sugar and all the dry spices except garam masala and kasuri methi.

Mix well and let it cook for 2-3 min.

Add cream (or butter and milk) and mix well.

Add kasuri methi and garam masala.

Add the chicken pieces and cook for a minute.

Serve hot with rice/paratha/naan!