Heat oil in a wok add cumin, green chilli, ginger - garlic and curry leaves saute for few seconds.
Add onion and saute until translucent than add tomatoes and saute until mashy.
Now add potatoes and corn mix well
Add salt, turmeric, red chilli powder, coriander powder and chat masala, mix well and saute for 2 - 3 min.
Add 1 cup water and cover and cook for 4- 5 minutes.
Finally add coriander leaves and switch off the gas.
Garnish with sev phaphara.
