Take all the ingredient except soda in a blender and make it into a fine paste.
Strain this through a sieve. This is the syrup. you can store this in a fridge for a week.
When serving, take as much syrup as needed in a glass and fill with soda.
Mix and serve cold.
Notes
1)The syrup can be store for a week in fridge. If you want to store for longer, you can freeze them in ice cube trays and use as needed.2)Use as much syrup as you like for per glass, taste and add more.