To make instant powder, grind coriander seeds+fennel seeds+ salt+green cardamoms+Sugar.

Make fine powder of it. Add mint powder in it and mix it. Its storable in fridge.

In case if you dont have mint powder, use fresh mint. Just make a pasteof it just before making drink.

Take chilled water. Add 2 tbsp of powder and squeeze lemon. Add extra sugar if you need. And drink it.