What is the creation of nature. We know that tamarind means sour but this is naturally sweet we couldn't find single drop of sour. Seeds also useful, in rural area they roast the seeds and eat.
Seeds should be separate and mash the soak tamarind. Now cook with chopped soaked dates, jaggery, red chilli, salt, ginger powder. At last add pinch of Cinnamon powder and lemon juice.