Blend cilantro, mint, black salt, cumin powder, chaat masala, pain puri masala to a coarse texture. Add 2-3 tablespoons of cranberry juice and blend to a nearly smooth puree.
Add this to the cranberry juice to make cranberry pani or water.
To the boiled potatoes, add cumin powder, chaat masala, black salt, salt, and cilantro. Mash together to a coarse texture.
To Assemble: Poke a hole in the puri. Add half a teaspoon of potato mixture, a couple of garbanzos, some sprouts, onions, and top with sev, pomegranate and cilantro. Repeat with the rest of the puris.
Pour about 3 tablespoons of cranberry pani.
Serve immediately.