The cucumber can be bitter sometimes hence after washing them cut the tops and rub the cucumber ends with the tops. You will get some foam. Wash the cucumber again.
Taste a slice if it is still bitter discard the cucumber. You can peel the cucumber if you wish I never peel them.
Chop and dice the cucumber fine.
Squeeze the cucumber with your palms to remove excess water as much as you can.
Add this squeezed cucumber in a mixing bowl.
Add groundnut powder, chopped coriander leaves, and sugar. Mix well.
In a small saucepan, heat oil add mustard when the rai/mustard splutters add finely chopped green chillies and pour this mixture to cucumber.
Add salt mix it with cucumber mixture.
Add curd and mix. Serve immediately as a side dish.
Notes
If making for fasting or Upvas as it is called in Maharashtra, the oil is replaced with ghee and mustard with jeera.
There are times like now when I skip the seasoning.
If you plan to make Khamang Kakdi then use 1 teaspoon lemon juice in place of curds.