Take a big pan and add one sliced onion, tomato, salt, ginger garlic paste, red chili powder, and turmeric powder.
Add water and let this cook until nearly all water dry on medium heat with a covered lid and the beans are soft.
Add oil and cook it until oil gets separated.
Add 1 cup of water and make a gravy. Cook further 10 minutes on low heat.
Now add coriander leaves and serve with boiled rice.