Wash and chop the green tomatoes and keep them aside.
Heat oil in a pan. Add cumin seeds, urad dal, fenugreek seeds, green chillies and garlic. Fry them on medium heat till the lentils and garlic change colour.
Add the chopped tomatoes.
Add salt, turmeric powder and tamarind pulp. Fry on high heat till you get a little bit of charring on the tomatoes.
Lower the heat. Cover and cook till the tomatoes become tender.
Once cooked, remove from heat and let it cool.
In a mixer grinder, add sesame seeds powder, jaggery powder and the cooled mixture. Grind to a fine paste.
Transfer this to a serving bowl.
In a small pan, prepare the tempering for the chutney by heating oil.
On medium heat, fry curry leaves, dry red chillies, urad dal, cumin/mustard seeds and asafoetida.
Put this on the prepared chutney.
Serve the chutney with hot steamed rice and ghee.