Take the Urad dal, red chillies and cumin seeds together and roast them

Wait till the urad turns light brown in colour

Take onions and chop them to small pieces

Roast these chopped onions in a separate bowl

Once onion is sufficiently roasted, put them along with the Urad dal in a mixer grinder

Pour little water into the mix so that it becomes a paste

Add some salt and mix it with tamarind puree

Grind the entire mix for some more time

You can also mix a tadka of mustard seeds, asafetida, curry leaves to this chutney and mix it well.

The chutney can be kept in the refrigerator to serve cold if required.