Heat oil in a wok add cumin seeds and asafoetida and splutter them.
Now add chopped onion and saute them till light pink in colour.
Now add peas and saute them till onion turns brown in colour.
Now add all dry masala n salt and mix well.
Now add chopped tomatoes and green chilly.
Now add 1tablespoons of water and cover it with lid and cook on slow flam till peas are soften.
