1. Wash ,peel and dice the gourd .
2. Chop ginger ,slit green chillies and slice onions .
3. Cook all ingredients with just enough water to cook the vegetable.
4. Remove from fire ,add beaten curds and salt .
5. Heat oil . Add mustard seeds ,curry leaves ,sliced onion and whole red chillies . When seeds crackle ,pour over gourd and curds mixture . Mix well .