Heat oil in pan.
Add chana dal and udad dal. Saute for few seconds.
Add garlic and dry red chillies and saute for few more seconds.
Add sliced onions. Sprinkle salt. Saute.
Add tamarind and saute.
Once the onions soften, add tomatoes.
Saute till the tomatoe sturn soft and mushy.
Allow this to cool completely.
Once cooled, transfer to a mixer jar.
Blend to a smooth paste.
For tempering, heat oil in a small pan.
Add mustard seeds, udad dal, curry leaves and dry red chilly.
When the ingredients start spluttering, pour the tempering into the chutney.
Kara Chutney is ready to be served.