Wash, peel and grate the bottle gourd, and keep in a wide vessel
Mince one onion, garlic, green chili and coriander leaves. Mix the above, along with the gram flour and rice flour to grated bottle gourd. Add salt to taste. Mix it well to prepare a dough. The batter should not be too watery or thinck. Carefully, deep fry on medium flame till golden brown. Serve hot with Ketchup.