Wash the beaten rice in a sieve under water thoroughly.
In a flat dish, soak the washed beaten rice in 160 ml water until the rice absorbs all the water.
Add turmeric and salt to the soaked beaten rice.
In a pan, heat the oil and add mustard seeds, green chilli and curry leaves and let them splutter.
Add the diced potato and add ¼ cup water, then cook under a lid, stirring intermittently.
When the potato is cooked, add peas and cook for couple of minutes.
Add the beaten rice and coriander, mix well.
Serve immediately.