Note that the standard is not for how to make a good tea, but just one suitable for sampling tea leaves (and provide some instructions to do it the same way every time)
Each state, each family, each district, probably has their own version.
The tea can be salty (J&K), incredibly sweet with thickened milk, with spices (cardamom, ginger among others), brewed with bhang (wet cannabis leaf), boiled with milk, leaves spices and sugar at the same time, or with each ingredient added in some specific order..
The possibilities are limited only by one's imagination, and my imagination often falls short of reality. :D