For preparing kothamalli / coriander leaves podi - brahmin special, first roast urad dal and red chillies in coconut oil for a few minutes. Wash coriander leaves and allow it to dry.
2)Grind the coriander leaves and the above roasted items(urad dal and red chillies) separately.
After grinding the above two items separately then mix both the mixtures and grind them along with tamarind together for a short period.