In a blender jar add sugar, cardamom,whole peppercorns and fennel seeds and grind to make a fine powder.
Sieve it with a fine strainer and keep aside. grind the residue and sieve again and then discard the final residue.
Now add almonds, pistachio,melon seeds, saffron, dried rose petals and khas khas and grind to make a fine powder,sieve and again grind the residue.
Now add both the powders in a bowl and mix properly.
Store the thandai in a airtight glass jar.
How to make thandai -
take a glass of chilled milk and add sugar according to your taste (I use 2 tsp sugar in a glass )and mix well then add 2 tsp of this thandai masala powder ,mix and use it after 30 minutes (you can use it instantly but soaking enhance the taste and become slight thicker)