Chicken sher

Ingredients:
Chicken ½ kg
Medium onion 1
Almonds, pistachios 50 gm
Milk 1 liter
Green coriander ¼ bunch
Oil ¼ cup
Turmeric powder 1 tsp
Kewra 1 tbsp
Ginger garlic paste 2 tbsp
Fresh cream 2 tbsp
Khara garam masala as required
Salt to taste