Wash and slit the brinjals in '+' sign retaining the stalk portion. Please refer the image. Also check for worms or any spoiled part.
Now immersse the slit brinjals in water for 10 minutes.
Meantime let us start roasting the ingredients for grinding. Take a frying pan and dry roast sesame seeds until they start spluttering. Once it is done take it out and keep it aside.
Next in the same pan dry roast ground nuts or peanuts until slightly brown. Once it is done take them out and keep it aside.
Next in the same pan add in a tsp of oil, 3 red chilies, 2 tsp gram dal, 1 tsp urad dal, 2 tsp coriander seeds, 1 tsp cumin seeds and 1/4 fenugreek seeds. Fry them under medium flame until dals are brown. Take care not to burn anything.
Once done take them out and keep it aside. Now have a look at all the ingredients roasted. Add in fried gram and grated coconut.
Transfer all the roasted ingredients, fried gram and coconut into a mixie jar and grind it into a thick paste by adding required water. Keep it aside.
Now take 4 tbsp of oil in the same pan and heat it. Add in mustard seeds. When the mustard seeds splutters add in curry leaves and chopped onions.
Fry the onions until soft. Then add in turmeric powder. Give a quick stir and reduce the flame.
Now take out the brinjals from the water. Remove the excess water. And then stuff the ground masala inside the slit brinjals.
Place the stuffed brinjals in the frying pan which has onion tempering.
After few minutes turn the brinjals and cook the remaining sides under low flame.
Add in tamarind juice extracted from a gooseberry sized tamarind, jaggery and salt.
Continue cooking the brinjals for few more minutes. Keep turning the brinjals and cook on all sides under low flame.
Once the brinjals are soft add in remaining masala and 1 cup of water. Cover and cook the brinjals for few more minutes.
After around 5 minutes or when the masala starts leaving the oil it is done. Sprinkle the chopped coriander leaves. Serve it with hot rice flour roti or jowar roti or chapathi.