Grind together all ingredients mentioned above for chutney. Add small quantities of water to assist in grinding and to get the desired consistency. Remove and set aside in a bowl.
Heat oil in a small pan and add mustard seeds. Once they splutter, add the urad dal and chana dal.
Once the dal turns golden brown, add the asoefotida and curry leaves. Let them cook until the curry leaves turn crispy.
Tadka is ready, pour it into the chutney immediately. Mix it in.
Chutney is ready to be served with idli or dosa.
Notes
Vegan Variation: Use your favorite plant based oil for tempering.