First take tindora wash them and cut them into pieces and keep a side.
In a Pan add oil, cumin seeds,garlic,tamarind, green chillies,cut pieces of tindora, salt and cook for 5min with closed lid.
once it is done add to blender grind till it is coarse paste.
now in a pan add oil for tempering, add murstard seeds, cumin seeds, red chilli, urad dal, curry leaves.
Add the tempering to the blended tindora mixture and mix well.