Chop the shallots and coconut sprouts. Set aside.
Heat the oil in a small pan. Once it’s smoking hot, add the urad dal, mustard seeds, and dry red chilli. Let the spices crackle and pop.
Follow with the curry leaves and then the ginger and green chilli. Fry for a few seconds (do not allow these to burn) and add the chopped shallots.
Fry the shallots until translucent, then add the coconut sprout bits. Add turmeric powder and salt and toss gently to mix. Sprinkle a little water if the poriyal looks like it might burn easily. Reduce heat and cover for just a minute or so.
Turn off the heat, squeeze the lime juice over top and add the coriander leaves.
Mix well and serve hot.