Chop all vegetables,slit green chillies lengthwise and Keep ready.Take shredded fresh coconut (remove brown part Keep only white) in a blender jar,add 2 cups of warm water and blend into fine mixture.Strain this coconut milk.Tgis is thick Coconut milk.Again put the squeezed coconut in blender jar,add water,blend it,strain it.This is thin coconut milk.Keep seperately in a bowl.Heat oil in a pan,add cinnamon sticks, cloves,Cardamoms,garlic,chopped onion.Saute for 2 min till onions r soft.