There was a time when people cooked their food on the stove. At that time, they put raw mangoes in the ash of stove to grill them for its panna. Today, they boil them and grind them. You should peel them before to boil instead to put out its pulp after boiling.
Wash raw mangoes and peel them. Cut them and throw their kernels away. Put this mango pieces in a cup of water and boil it. Then, put this boiled pulp in the mixer and add sugar and black salt in it.
Mix one litre water in it and sieve it. Mix black pepper and jeera powder in it. Your raw mango Panna is ready. Decorate it with mint leaves and put ice cubes at the time of serving.