Take a pan heat it add sesame seed dry roast till golden brown colour optional coconut powder grind into a corse powder.
Take a pan heat oil, add urad dal, onions chopped,salt saute it then addgreen chillies, turmuric, ginger garlic paste, curry leaves saute it then add small pices of bottlegourd and mix well add some water and close it with a lid.
cook the bottle gourd till it is 80% done then add the sesame seeds powder, coriander powder saute it again and cook for another 3 -4 min.