Eggplant/Kathrikkai Rasavaangi With Lemon Juice

Eggplant rasavaangi tastes tangy and goes very well with hot steaming rice topped with ghee and served with papads or spicy potato roast..Usually rasavaangi is prepared with tamarind juice and i want to change the usual way of making out rasavangi and tried out few teaspoons of lemon juice, i didnt..