1)Using grater, grate the bitter gourd.
2)Combine together grated pavakka, coconut, finely chopped green chillies and shallots, curry leaves and salt with your hands or spoon.
3)Heat oil in a thick bottom vessel.
4)Splutter mustard seeds and sauté red chillies.
5)Add the pavakka mixture into it and cover with a lid.
6)Cook for 5 minutes.
7)Remove the lid and stir well again.
8)Cook again for 10 minutes on low flame, till done.