In a deep bottom pan or skillet, add in the green chillies on high heat.
Add in the garlic cloves. Further, cook, stirring often, until the skins char and blister all over. Turn them to get all the sides evenly for about 4 to 5 minutes.
Add in 1/3 tsp oil and stir. Take out the garlic and set in a mortar and pestle or else it can burn quickly. Furthermore, let the green chilies' blister for another 3 to 4 minutes. Add in the salt and mix well.
Turn off the heat and transfer the green chilies', to a mortar pestle and grind them coarsely. You can also use a blender and grind for a few seconds. It needs to have some texture. Enjoy with roti, naan or thalipeeth.