Add coconut oil to a pan. When oil turns hot add mustard seeds, urad dal and curry leaves let them splutter
Furthermore, add asafoetida and mix a good mix; transfer to a plate
Add coriander leaves, turmeric powder, ginger powder, and tamarind to the hot pan; give a good mix
Furthermore add green chilli, salt, coconut, and pottukadalai; let them cool in the same pan
After everything is cool transfer to the mixie add little water and grind a smooth chutney
Transfer to a container
Add water according to your preferred texture and mix well
Finally, add the tempering and mix well