Tomato Pepper Rasam

1. pierce the tomatoes with a fork and place on microwave safe plate and microwave on high for 4 minutes.
2. remove the skin and discard and mash the tomatoes lightly with a fork.
3. in another microwave safe bowl,microwave 3 cups of water on high for 2 minutes.
4. add the mashed tomatoes, turmeric powder,chilli powder,asafoetida, rasam powder,tamarind pulp and salt and microwave on high for 4 more minutes.serve hot,garnished with coriander.