Heat 1 teaspoon in a kadai - add 1 tablespoon urad dal, 1 tablespoon channa dal and 6 red chillies.
Saute until the lentils turn golden brown. Sauteing red chilies along with lentils avoids burning of it. Transfer to a plate and set aside.
Now add 1 teaspoon oil along with 2 medium sized onion (sliced), 2 medium sized tomatoes(chopped roughly) and 4 cloves of garlic.
Saute until slightly soft.
Cook covered for 5-8 minutes or until the raw smell of tomatoes leave. I between stir to avoid burning at the bottom.
Once onion, tomato turns mushy its done.
Add 1 teaspoon tamarind, required salt to taste along with roasted lentils, red chilies.
Give a quick saute and switch off.
Transfer to a plate and cool down completely.
After cooling transfer it to a mixer jar, add little water.
Grind to chutney consistency - slightly coarse. Adjust salt at this stage,
Rinse mixer with water and add it.
Mix it well.
To the same kadai heat 1 tablespoon oil - add ¾ teaspoon mustard seeds let it crackle, add a pinch of hing and few curry leaves and let it splutter.
Add tempering to chutney.
Mix well and your kara chutney is ready.
Serve with crispy dosa!