Hagalkai Mavinkai Gojju with step by step video instructions. Hagalkai Mavinkai Gojju is a curry made from bittergourd or karela and raw mangoes. This summer curry is a melting bowl of flavors, it is bitter, sweet, sour and spicy. Hagalkai Mavinkai Gojju tastes best with rice. This curry suits a vegan or plant based diet, gluten free diet and a Jain diet.