1.Quantity of tamarind can be increased as per the tanginess u prefer. You shall decrease tamarind to make it subtle.
2.You shall also add green capsicum along with radish. Capsicum tastes best in this dish.
3.You shall dry fry ½ cup cowpeas/thattai payaru and pressure cook for 3 to 4 whistles, drain the water and add the cooked cowpeas along with tamarind extract to make cowpeas radish curry. This will increase the protein content of this dish.
4.Jaggery is optional but when added, it balances and indeed elevates the taste.