Wash the Jamun berries and de-seed them. Put some crushed ice and Jamuns in a blender jar.
Add some black salt, sugar, lime juice and blend it to a smooth texture.
Put the kosher salt in a plate. Rim the shot glasses with lime wedge. Gently touch the glasses in the salt plate. So that salt is all around the rim of the glasses.
Pour the juice mixture in the shot glasses and Jamun shots are ready to serve!