Wash veges and half Boil with salt & turmeric . Cut the onion and tomato into slices. Put a non stick pan on the gas ,heat oil, Add punch-phutana. When the punch-phutana start cracking add the sliced onions. Stir a little. Fry till the onions become browned. Add the mustard paste with 3 to 4 cups of water. T hen add tomato .After 15 minutes, you add boiled brinjal, potato & drumstick. Stir a little. and boil it further for about 10 minutes.Garnish with coriander leaves. Gota Baigan Besara is now ready to be served with rice.