Whisk curd in a large bowl and temper it with mustard seeds and curry leaves. Mix togeher and keep aside.
Take the chopped cucumber in a separate bowl and press them gently between your palms to squeeze out extra water. Keep aside.
Take the dry roasted peanuts and rub them gently on a kitchen towel to remove the skin. In a mortar and pestle, ground the peanuts coarsely and add into the curd mix.
Stir all together and season it with required amount of salt.
Now take the cucumber and mix all till everytjing incorporates well.
You can now add freshly grated coconut but it’s completely a personal choice.