Rinse and dry the bhindi with kitchen towel. Cut them into small pieces around half inch.
Heat the oil in non-stick pan, add chopped bhindis and saute for few minutes. Transfer into plate and Keep aside.
Heat the mustard oil in non-stick pan. When oil becomes hot, add cumin seeds, carom seeds, asafoetida and saute few seconds.
When they start crackle, add chopped onion, green chilies, and ginger and saute till to translucent.
Now add chopped tomatoes and saute till to mushy.
Add dry Indian spices and except salt and mix well.
When oil separates, Add chopped bhindis and salt and mix well. Cover and cook till to tender. Stir occasionally to avoid burnt.
Add lemon juice and mix well. Remove from the flame.
Serve bhindi masala with chapatis.