Rinse white rice with water 2-3 times until the water runs clear.
Drain the water and add the rice to a pressure cooker. Keep a medium-sized whole peeled beetroot in the cooker and pour 1 and ½ cups of water in the cooker.
Close the lid of the cooker and cook the rice for 3 whistles on high heat.
Remove the cooker from the heat and let the pressure release naturally. Open the lid.
You can also cook the rice and beetroot in an instant pot. Add rice, 1 cup of water, and beetroot to an instant pot. Close the lid and set the valve to the sealing position. Press PRESSURE COOK and set the timer to 6 minutes. Once the timer goes off, let the pressure release naturally for 10 minutes. Release the remaining pressure manually and open the lid.
Puree The Beetroot
Bring the cooked rice and beetroot to room temperature.
Remove the beetroot from the cooker using a spoon or a tong and transfer it to a blender.
Blend to make a smooth puree.
If your blender is not very powerful, then you can cut the cooked beetroot into small pieces before pureeing.
Make The Curd Rice
Transfer the cooled rice to a medium mixing bowl along with yogurt, milk, beetroot puree, and salt, and mix well.
Slightly mash the mixture using your hands.
Check for salt and add more if required.
Temper The Curd Rice
Heat oil in a small pan over medium-high heat.
Once the oil is hot, add mustard seeds and curry leaves and let them crackle for 4-5 seconds.
Add urad dal, ginger, and red chili and fry until dal turns slightly brown, stirring continuously.
Pour the tempering over the curd rice and mix well. Chill the rice for 2-3 hours.
You can save some tempering for the garnishing.
Garnish with fresh coriander and pomegranate seeds. Serve chilled with rice papads.