Making juice
In a mixer jar add chopped plums, rock salt, sugar, cumin powder. Blend into a puree. Add water and blend it again.

Strain the juice with the soup strainer. Add lime juice and mix it well.

For decorating serving glasses
In a small dish, add salt and pepper. Mix well and keep aside, slice the lime into thin slices with small slit from edge to center. Rub the rim of the glasses with the lime to make it wet.

Invert the glass in the salt and pepper mixture prepared in the dish. Gently move it till the salt and pepper stick to the rim.

Decorate with the lime slices.. The glasses are ready. You can keep in the fridge to get cool and use them when serving the juice.

Pour the plum juice in the decorated glass and enjoy every sip of it.