Heat oil in a heavy-bottomed pot on high heat, almost to smoking point. (Select pan that will accommodate all mamna in a single layer to reduce need for heavy stirring.) Reduce heat to low and add chopped onion, cover, and fry until onion becomes soft. Add garlic, chilies, turmeric powder, Dhana Jeeru powder, Lime / Kadhi Limro leaves and mix in. Cover again and fry mixture gently for about a minute, ensuring it does not burn.