Wash the horse gram, then pat it dry or sun-dry it.
Dry-roast the horse gram patiently until it changes colour.
Grind the roasted horse gram with the grated coconut, garlic, dry-roasted Byadagi chillies, tamarind and salt. Adjust the tamarind and salt to taste.
For the optional nesal, heat the coconut oil and add the mustard seeds and curry leaves. Pour this tempering over the chutney.
Serve with nuppu-saar, dal or thove and rice, or piping hot ganji.