Heat oil in a pan and add the cumin seeds. Saute for 30 seconds. Add the green chilies and garlic and cook for 30 seconds.
Add the tindora pieces and saute for 10-12 minutes. Add splashes of water to avoid sticking to the pan. close the lid and cook till soft.
Turn off the stove and add the tamarind and coconut. Let the mixture cool completely.
Now transfer the cooked ivy gourd to a mixer, add coriander leaves (just a little), sugar and salt. Grind to a coarse paste. Taste and adjust the seasoning. Transfer the chutney to a bowl.
Do the tempering or tadka by heating oil in a small pan.
Add the mustard seeds and let them pop. Add urad dal, curry leaves and sliced garlic and saute till dal turns light brown. Add the asafoetida, give a mix and turn off the heat.
Add the tempering to the pachadi and enjoy it with white rice and ghee.