Wash,slit and boil tomatoes in water.

Remove skin and cool.Add into grinding jar add coconut, chilli, water and grind.

Strain by strainer.Add water if required.Add Salt and jaggery powder.

In a tadka pan add oil mustard seeds and cumin seeds.Asafotida and curry leaves.Add this tadka in tomato saar and bring to boil.Serve with steam rice.