Wash, peel and deseed the papaya.
Grate it using a thick blade. Set aside.
In a pan heat the oil. Once hot, add mustard seeds and let them splutter.
Then add asafetida, cumin seeds, green chillis and curry leaves.
Once the cumin seeds pop, add the papaya. Mix well. Cover and cook for 4-5 minutes on medium flame.
Once the papaya becomes slightly translucent add salt, sugar, turmeric powder and mix well.
Cook on medium flame till the papaya softens.
Then add the chickpea flour and mix it into the papaya. Add 2-3 tablespoon water if the chickpea flour sticks and does not distribute well.
Cover and cook for another 3-4 minutes. The papaya should be translucent by now.
Turn down the flame, add lemon juice and cilantro. Mix and serve.