If you are making it in a bulk, add the aam panna concentrate to a blender, vodka, and add few ice cubes and cold water. Pulse it until nice blends. Serve it chilled, topped with club soda. mix it will a spoon.
If you are just making a small quantity, add the aam panna concentrate to a glass. Add water, and vodka mix it well with a spoon. Add ice cubes, and serve it chilled topped with club soda.
Skip adding vodka if you want to serve the panna as a mocktail