Soak ½ cup black channa in water for 8 hours minimum or overnight. Keep it covered.
After 8 hours, rinse it well drain water.
Add it to a pressure cooker along with salt to taste and 2 and ½ cups water.
Pressure cook for 5 whistles. Let pressure release by itself.
Press to check if channa is cook soft. Drain water and set aside.
To a kadai add 1 teaspoon chana dal, ½ teaspoon coriander seeds, ½ teaspoon cumin seeds, ½ teaspoon urad dal and 2 small red chilies.
Dry roast until golden, remove and set aside, to cool.
Grind it slightly coarse, set aside.
Now heat 1 tablespoon oil - add ½ teaspoon mustard seeds let it crackle add ¼ teaspoon hing, 1 small sprig of curry leaves let it splutter.
Add drained channa along with salt.
Saute well for a minute.
Add prepared masala powder along with 3 tablespoon grated coconut.
Mix it well until combined and switch off.
Black channa sundal is ready!