Grind together grated coconut, a pinch of turmeric powder, cumin seeds, shallots and green chilli to a fine paste. Keep aside.
Pressure cook the jackfruit seeds adding salt, turmeric powder, red chilli powder and enough water (2 whistles).
Remove the cooker from the heat, let the pressure subside and open the lid.
Add mango pieces and cook until soft and tender (add some water if required).
Add ground paste and mix well. Reduce the heat to low and cook about 2-3 minutes then turn off the heat.
Heat oil in a pan and add mustard seeds. When it starts spluttering add dried red chilli, curry leaves and fry for few seconds.
Pour this seasoning over the curry, mix well and serve with boiled Rice.
