Wash and soak green gram for 30 mins. Drain it and add it to pressure cooker, cover with water and add salt. Pressure cook for 3 whistle, then simmer for 10 mins. Turn off the heat and let the steam go all by itself, open the cooker and drain it. Set aside.
Now heat oil in a pan, add in mustard, urad dal, asafoetida and curry leaves. let them sizzle.
Add in onions, chillies and saute for a min.
Add in carrots and salt and mix well. Cook till carrots are cooked.
Add in the cooked dal and toss well.
Sprinkle over coriander leaves and lemon juice. Toss well.