First parboil gawarbeans and potatoes...

Now add oil in pan now add cumin, mustard and aesofetidea and let it crackle...now add garlic and chilli, onion and cook till onion changes colour...now add dry masala and chopped tomatoes and let it cook...

Now add gawar beans and potatoes and salt and cook for another 10 minutes...serve hot with chapati, rice and dal