In a pan, add cucumber seeds, fennel seeds, black pepper, poppy seeds.
Saute them nicely, until they change color.
Let them cool down and then grind it in a mixer.
In a bowl add water, sugar, Almond- Pistachio paste and above mixture.
Mix them well.
Take 2 glasses, pour some tablespoons of mixture that we've prepared and add milk.
Mix them well and your Thandai is ready.