Soak the basil seeds in 1/4 cup of water, till all bloated. This will take around 10 minutes.
In a bowl, mix the remaining ingredients till well combined.
Pour into tall glasses, divide the plump basil seeds into all three glasses and serve immediately.
The quantity of rose syrup is all upto you. You want it sweeter, add more. Instead of having a milk-water combination, you can go for all milk too. You can very well serve the rose milk without any basil seeds.