For the green coriander chutney; combine all ingredients in to a blender except for the water, pour the water in a little bit at a time until smooth. Set aside
Peel and cut the potatoes in to 1.5cm cubes. Put the potatoes in a large pan with 1 ltr of water and bring to boil. Boil the potatoes for 10-15 mins or until soft
While the potatoes are boiling, finely dice the red onion and tomatoes and add to a large bowl. Add in the chickpeas, pomegranate, chaat masala, green chillies, and the potatoes and toss together
Add in the sev mumra, and chutneys (leaving some for garnish) and toss together
Finely chop the coriander and stir half in to the mixture
Plate up the chaat and garnish with the rest of the coriander, sev mumra and the chutneys. Enjoy!