Yes, Thandai powder can be made at home. It is a simple process.
You just need to make a powder of ingredients like almonds, unsalted pistachios, cashew nuts, melon seeds, watermelon seeds, cucumber seeds, saffron, black pepper, roasted and cooled poppy seeds, fennel, rose petals, and cardamom.
Mix it with chilled milk and have a healthy thandai made out of homemade thandai Powder!
While mixing in chilled milk, sugar can be added separately as per taste.