Blend all ingredients in the blender except lemon soda. Strain the liquid for a smooth texture.
Then fill glasses with prepared strawberry mint syrup.
Pour about 3 tablespoons of (50 ml) lemon soda in each glass. Serve chill with a mint leaf, a strawberry and lemon slice.
To prepare this drink few hours ahead, blend all ingredient together except ice and soda. At the time of serving add ice and mix well. Do a taste test, add more water if required. Fill glasses with drink and top with lemon soda.