Rinse the mung dal in 2-3 changes of water. Drain and keep aside.
Heat a pressure cooker. Melt ghee and add cumin seeds.
Once the seeds crackle, add onion. Saute for few seconds and toss in the chopped carrot followed by green peas. Stir fry the veggies for a minute or so.
Add turmeric and stir well. Follow with the washed and drained mung dal. Fry for a few minutes and add the broken wheat. Stir fry on a low flame till the aroma rises.
Pour in 2 cups of water followed by finely chopped coriander leaves. Give a quick stir and put on the lid.
Pressure cook the khichdi on a medium flame for 2 whistles. When the pressure releases on its own, open the lid and stir the khichdi through. Serve warm.