Wash and peel the skin from the bottle gourd. The cube the sorakaya into small pieces.
Then heat a pan with oil, add methi, coriander seeds, hing, cumin seeds, Bengal gram, Then add the red chilies, green chilies, remove that aside.
Then add the peels, saute well. Then add the sorakaya pieces and saute for a while.
Remove and allow it cool.
Once it is cooled down, grind to an almost coarse paste.
Heat another pan with oil. Once it is hot, add mustard seeds and urad dal. When it splutters, pour over the ground chutney and mix well.
Serve with steaming rice.