Take a big iron Tava or iron wok. Heat desi ghee in wok on high flame. Add cumin seeds, asafoetodia, ginger & green chilly saute with spatula. Add tomato,salt and sugar mix well stir continuously for a minute. Now add potato and chickpeas mixture saute nicely. Combine all ingredients and 1/4 cup of coriander leaves mix well. Stir continuously on low flame for 5 minutes until turns into thick form and starts leave the ghee, sides of the wok. Turn off the gas.