Wash the bottle gourd properly and peel it. Chop the peels.
Heat oil in a pan. Add garlic, green chillies and cumin seeds, Fry well.
Now add the chopped peels.
Add tamarind pulp and salt. Lower the heat. Cover and cook for 5-7 minutes.
When cooked, turn off the heat and let the mixture cool.
Toast the sesame seeds.
When well toasted, transfer them to a mixie jar. Also, add the cooled bottle gourd mixture.
Grind to a coarse paste. Add just a little water to aid in grinding. Don't make a paste. Keep it coarse.
Transfer this to a serving bowl.
For the tempering: Heat oil in a pan. Fry cumin seeds, curry leaves, dry red chillies and asafoetida.
Put this on the prepared chutney.
Serve with hot steamed rice and ghee.