Chop Pineapple into bite size pieces & keep aside.
Dry roast all the "Grind Together" ingredients & grind to paste with little water.
Heat oil in a kadai. Add Mustard seeds & Hing. Once the seeds crackle, add Curry leaves & Pineapple pieces. Mix well & add little water. Cook until soft.
Add the ground paste, Tamarind juice, Jaggery & Salt. Mix well & boil for 2 mins. Add extra water to adjust consistency. It should be semi-liquid.