On medium heat, toast the sesame seeds. Keep them aside.
On a pan, heat oil. Fry cumin seeds, slit green chillies and turmeric powder. Take them out
In a mixie jar, grind the toasted sesame seeds, fried cumin & green chillies, tamarind pulp and chopped garlic.
To this ground mixture, add chopped zucchini and salt.
Grind to a fine paste.
Transfer this paste to a serving bowl.
Prepare the tempering by heating oil in a pan. Add urad dal, cumin seeds, curry leaves, dry red chillies and asafoetida. Fry on medium heat for a few seconds.
Put this on the prepared chutney.
Serve with hot steamed rice and ghee.