Take 1/2 cup curd in a blender jar or in a deep veseel.
If you are using whisk to make use vessel.
If making in blender jar, combine all the ingredients in it.
Add all the other ingredients like, cinnamon powder, sugar or powdered sugar and milk.
Blend it till it is frothy.
Add ice cubes and blend again.
Transfer it into serving tumblers.
Sprinkle some dry fruits and cinnamon powder.
If using wire whisk, whisk it for 2 to 4 minutes.
First whisk adding water and sugar.
Then add cinnamon powder and milk and whisk again for 2 minutes.
Serve chilled sweet lassi.