Wash and soak the rice in water for 10 minutes and then cook it for 15 minutes in the microwave oven on high power.
Keep aside and let it cool.
Now heat oil in a microwave oven bowl for a minute on high, and add the mustard seeds, urad dal, curry leaves, grated ginger, slit green chillies, peanuts, asafoetida powder to the hot oil and cook for 4-5 minutes until brown.
Now add the grated mango, salt and turmeric powder, stir well and cook in high power for 5 minutes.
Then add the rice to the tempered mango-spice mixture, toss gently until everything gets mixed.
Cook in the microwave for a minute or two and remove.
Now add the lemon juice, stir well and keep aside.