Take coconut in a blender and make it into a fine paste by adding some water.

Heat oil in a pan, add in all the seasoning ingredients, curry leaves and saute for a min.

Add in onions, green chillies and saute till golden brown.

Add in ginger garlic paste and saute for a min.

Now add in tomatoes and cook till the tomatoes turn mushy.

Add in all the spice powders and mix well.

Now transfer this to a pressure cooker, add chicken and potatoes along with salt and water. Cover and Pressure cook for 2 whistle. Simmer the pan and cook for another 10 mins. Turn off the heat and let the steam go all by itself.

Open the cooker and add in coconut paste and mix well. Add more water if needed.

Cook this whole thing till oil separates.

Now add in coriander leaves and mix well.

Serve.