Add 2 1⁄2 tsp chilli powder, 1⁄2 tsp coriander powder, turmeric powder and some water and mix well. In a pan, add 5-8 fenugreek seeds, 5-6 sliced shallots and a small piece of ginger and curry leaves. Add the soaked masala and saute well. Add 3-4 pieces of Malabar tamarind (kodam puli) and coconut milk and mix well. Add the fish and cook well.