In a saucepan take the sugar and add the water. On a low flame, bring the water to boil so that the sugar melts completely. When it starts to boil, switch off and let the syrup cool down.

Wash the mint leaves and grind it to a smooth paste along with ginger, black salt.

Strain the liquid into a bowl, and remove the pith.

Add the sugar syrup and chill the drink until serving.

Just before serving, squeeze in the lemon juice and serve chill.