Grind the onions, tomatoes, and green chilies.

Break the vadi into smaller pieces. Heat the cooker.

Add mustard oil. After heating, it, add grinded ingredients to it.

Saute it for some time. Add spices to it(salt, red chili powder, and turmeric powder).

Add potatoes and Vadis to it. Add 3 glasses of water to it.

Cover the lid and wait for 2 whistles.

After getting whistles, add garam masala and fresh coriander leaves in it.

Serve with chapatis.