Firstly, grind the dried ginger.
Also, coarsely crush mustard seeds.
Now, beat curd/yoghurt to make it smooth.
at yoghurt to smoothen it.
Slightly mash the cooked rice.
Now add the beaten curd to the cooked rice.
Finally, add ground mustard, ginger powder, black pepper powder, salt and some water.
Lastly, mix everything well.
Thereafter, add more water if needed.
Mandatorily, cover and keep on the kitchen counter for an hour or so. Keep it out longer for tangier flavor.
Then keep it in the fridge for an hour before serving. Adjust the seasoning.